Provided is an iron-based alloy powder with which the cracking of a molded body can be prevented. The iron-base alloy powder comprises, in terms of mass%: 0.30 ≤ C ≤ 0.50; 0 < Si ≤ 0.40; 0 < Mn ≤ 0.40; 0.85 ≤ Cr ≤ 1.75; 0 < Ni ≤ 0.40; 0.70 ≤ Mo ≤ 1.20; 0 < V ≤ 0.60; 0 < Al ≤ 0.10; and 0 ≤ W ≤ 0.40%. The balance is iron and unavoidable impurities. Of all elements contained in the iron-based alloy powder, the equivalent carbon content Ceq, which is a value representing the influence of non-carbon elements in terms of the amount of carbon, is 0.95% or less.
Provided is a powder for metal lamination molding, the powder having excellent high-temperature strength and cracking resistance. Also provided is a lamination molded article prepared using this powder for lamination molding, the lamination molded article having excellent high-temperature strength. This mixed powder for lamination molding comprises a Ni-based alloy powder at least containing one or two of Ai and Ti within the range of 0.5 mass %≤(Al+1/2Ti)≤2.8 mass % in the chemical components and an oxide nanoparticle attached to the surface of the Ni-based alloy powder.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/16 - Metallic particles coated with a non-metal
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
The purpose of the present invention is to provide an alloy tool steel for hot working that has both excellent toughness and excellent softening resistance. Provided is an alloy tool steel for hot working, containing carbon, silicon, manganese, nickel, chromium, molybdenum, vanadium, niobium, and nitrogen, the remainder being iron and impurities, wherein: the metallographic structure of the alloy tool steel for hot working is martensite or bainite; the metallographic structure includes blocks with a diameter of 2.0–6.0 μm; and a solid solute element on quenching parameter Q, calculated on the basis of the formula Q = (Cr1 + Mo1 + V1 + Nb1) / (Cr2 + Mo2 + V2 + Nb2) [where (Cr1 + Mo1 + V1 + Nb1) represents the total amount of chromium, molybdenum, vanadium, and niobium in solid solution in austenite at the quenching temperature and (Cr2 + Mo2 + V2 + Nb2) represents the total amount of chromium, molybdenum, vanadium, and niobium in solid solution in austenite at 800°C], is at least 1.12.
Provided is a method of manufacturing a mixed power for additive manufacturing in which an M powder is more uniformly distributed. The method includes a mixing step for mixing a first metal powder comprising a spherical Cu powder or CuM alloy powder (where M is one or more metal elements) and a second metal powder comprising a spherically formed M powder.
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/14 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes using electric discharge
Provided is a Cu-based alloy powder, which is suitable for molding that is based on a process involving rapid melting and rapid solidification and with which a Cu-based alloy molded article having excellent relative density, electric conductivity, and strength can be formed. This Cu-based alloy powder comprises 0.05 to 10.0% by mass of an additive element M1 component, 0.01 to 1.00% by mass of a third element M2 component, and the balance Cu with unavoidable impurities. The M1 component comprises any one or more of Nd, Zr, Mo, and Cr, and the M2 component comprises one or more elements having a solid solubility limit of not more than 1.0% by mass relative to the M1 component added to the alloy powder.
The purpose of the present invention is to provide a 3D printing powder having excellent high-temperature strength and a 3D printed body having excellent high-temperature strength and fabricated using the 3D printing powder. The present invention provides: a 3D printing alloy powder material comprising an alloy powder, and oxide nanoparticles that have not been surface treated by an organic substance and that are adhered to the surface of alloy particles constituting the alloy powder; and a 3D printed body fabricated using the 3D printing alloy powder material.
B22F 1/16 - Metallic particles coated with a non-metal
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/105 - Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
The present invention addresses the problem of providing an Ni alloy powder that is suited to additive manufacturing and has excellent high-temperature strength and cracking resistance. Provided is an Ni alloy powder that is, by mass, 40.00%–70.00% Ni, 15.00%–25.00% Cr, 0.10%–12.00% Mo, 3.00%–7.00% Nb, 0.10%–1.50% Al, 0.10%–2.00% Ti, 0.01%–0.40% Si, 0.001%–0.15% C, 0.0002%–0.0040% B, 0%–0.002% S, and a total of 0%–7.00% W and/or Co, the remainder being Fe and unavoidable impurities, the Ni alloy powder having an A1 (strength parameter) value of at least 200 and an A2 (cracking resistance parameter) value of no more than 200.
Provided is copper alloy powder which is appropriate for a process involving rapid melting and rapid solidification, such as for a laminate molding, and makes it possible to produce a molded article having high density and high conductivity. The copper alloy powder for a three-dimensional laminate molding is composed of a copper alloy containing an additive element M, wherein the additive element M has a solid solubility limit A in an equilibrium state with copper of 0.01≤A≤1.00 (atomic %), and B/A, which is the ratio of an actual solid solution amount B (atomic %) to the solid solubility limit A (atomic %), is 1.2-5.0.
The purpose of the present invention is to provide a CoFeB alloy-based target material that reduces generation of particles during sputtering. Provided is a sputtering target material comprising an alloy containing Co and/or Fe, and B and at least one additive element M, the remaining portion being unavoidable impurities. The contained amount of B in the alloy is 49.0-52.0 at%. The at least one additive element M is selected from the group consisting of Mo, W, Nb, Ta, Zr, and Hf. The total contained amount of the at least one additive element M in the alloy is 0.1-2.0 at%.
C22C 29/14 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on borides
G11B 5/39 - Structure or manufacture of flux-sensitive heads using magneto-resistive devices
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
H01F 1/147 - Alloys characterised by their composition
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
1010[t]+24)/1000 (where [T] represents the quenching temperature (°C) and [t] represents the quenching temperature retention time (h)), is 27.4 to 29.3; and the number of carbides having an equivalent circular diameter of 1 μm or more per 10,000 μm2 of the hot work tool steel before use is 150 or less.
733 phases that are dispersed in the heat-resistant alloy phase, and which contains, on a mass basis, 20-46% of Ni, 22-43% of Cr, 4-13% of Al, 0.1-1.0% of Y and 0.3-4.2% of C, with the balance being made up of Co and unavoidable impurities.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 3/24 - After-treatment of workpieces or articles
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C23C 4/04 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
F27B 9/30 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity - Details, accessories, or equipment peculiar to furnaces of these types
12.
COPPER ALLOY POWDER FOR ADDITIVE MANUFACTURING HAVING EXCELLENT ELECTRICAL CONDUCTIVITY
Provided is copper alloy powder suitable for additive manufacturing, with which a high-density high-electrical-conductivity shaped object can be manufactured. This copper alloy powder for additive manufacturing comprises: a total of 0.1 to 10% of Zr alone, or element M which is a combination of Zr and at least one kind selected from the group comprising Cr, Fe, Ni, and Nb; 50 to 500 ppm of O; 0% to 0.2% of Si; 0% to 0.2% of P; 0% to 0.2% of S; and the balance Cu and inevitable impurities. In a diffraction pattern of this copper alloy powder obtained by X-ray diffraction using a CuKα ray, where (1) represents a peak intensity at diffraction angle 2θ = 43.0 ± 0.2˚, (2) represents a peak intensity at diffraction angle 2θ = 43.5 ± 0.2˚, and (3) represents a peak intensity at diffraction angle 2θ = 50.2 ± 0.5˚, peak intensity ratio (1)/(3) is 1.5 to 2.5, and peak intensity ratio (2)/(3) is 2.5 to 3.5.
Provided is a soft-magnetic flat powder that is suitable for manufacturing a high-performance magnetic sheet. This soft-magnetic flat powder is formed of a Fe-Si-Al-based alloy that contains B as an added element. The percentage content of B in the alloy is 0.002-0.015 mass%. Preferably, the flat powder has a volume-based median diameter D50 of 30-80 μm, a tap density TD of 1.25 g/cm3 or less, and a magnetic coercive force Hc of 400 A/m or less.
The purpose of the present invention is to provide a shaped body which is able to achieve a good balance between high thermal conductivity and hardness (quenching/tempering hardness and hardness after softening by means of retention at high temperatures); and the present invention provides a shaped body which is formed of an Fe-based alloy powder that contains, in mass%, more than 0.20 but less than 0.60 of C, less than 0.60 of Si, less than 0.90 of Mn, less than 4.00 of Cr, less than 2.00 of Ni, less than 1.20 of Mo, less than 2.00 of W, less than 0.60 of V and less than 0.10 of Al, with the balance being made up of Fe and unavoidable impurities, and which satisfies the formulae (1) to (3) described below. (1): T1 = 71.7 – 5.9(Mn) – 6.3(Cr) – 2.8(V) – 5.7(Mo) – 1.1(W) - 23.1(C) – 5.8(Ni) – 1.9(Si) – 0.5(Al) – 0.6PC > 32.0 (2): T2 = 80.1 + 2.4(Mn) + 1.6(Si) + 7.1(Cr) – 12.0PC > 50.0 (3) The average size PC of carbides < 3.0 (μm)
An iron alloy provided with: a composition comprising, in terms of mass%, 0.1-0.4% C, 0.2-2.0% Si, 0.05-2.0% Mn, 25-42% Ni, 0.1-3.0% Cr, 0.2-3.0% V, a total of 0-0.1% of one or more elements selected from the group consisting of Ca, Ti, Al, and Mg, a total of 0-0.1% of one or more elements selected from the group consisting of Zr, Hf, Mo, Cu, Nb, Ta, W, and B, and 0-5% Co, the remainder comprising Fe and unavoidable impurities; and a structure in which an oxide is dispersed in a parent phase, the maximum diameter of the oxide included in a 2 mm × 20 mm-region in a cross section of the iron alloy being less than 150 µm.
The purpose of the present invention is to provide a sputtering target material having exceptional cracking resistance, and a method for manufacturing said sputtering target material. Provided is a sputtering target material the substance of which is an alloy including B and one or more rare-earth elements, the balance being Co and/or Fe, and unavoidable impurities, wherein: the B content of the alloy is 15-30 at.% (inclusive); the one or more rare-earth elements are selected from the group consisting of Pr, Nd, Sm, Gd, Tb, Dy, and Ho; and the total rare-earth element content with respect to the one or more rare-earth elements is 0.1-10 at.% (inclusive). Also provided is a method for manufacturing said sputtering target material.
H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
222B phase and the (CoFe)B phase with use of a scanning electron microscope and the B content ratio X (at.%) of the alloy M satisfy the formula below. Y < -0.0015 × (X – 42.5)2 + 0.15
22B phase and (c) a (CoFe)B phase; the first phase is composed of an Fe phase or a CoFe phase that has a Co content ratio of less than 80 at.% relative to the sum of the Co content and the Fe content; and the second phase is composed of a Co phase or a CoFe phase that has a Co content ratio of 80 at.% or more relative to the sum of the Co content and the Fe content.
In order to provide hot-work tool steel having exceptional high-temperature strength and toughness, the present invention provides: hot-work tool steel that contains, in terms of mass%, 0.20-0.60% of C, 0.1-0.3% of Si, 0.5-2.0% of Mn, 0.5-2.5% of Ni, 1.6-2.6% of Cr, 0.3-2.0% of Mo, and 0.05-0.80% of V, the balance being Fe and unavoidable impurities; and hot-work tool steel that contains, in terms of mass%, 0.20-0.60% of C, 0.1-0.3% of Si, 0.5-2.0% of Mn, 0.5-2.5% of Ni, 1.6-2.6% of Cr, 0.3-2.0% of Mo, and 0.05-0.80% of V, the balance being Fe and unavoidable impurities, and the hot-work tool steel being configured so that the number of carbides having a size such that the equivalent circle diameter is 1 μm or greater is 150 or less per 10,000 μm2 in the hot-work tool steel prior to use.
11 point temperature of 750ºC or higher and contains, in terms of mass%, 0.15-0.26% of C, 0.05-1.00% of Si, 0.1-0.9% of Mn, 0.030% or less of P, 0.030% or less of S, 1.30-2.50% of Cr, 0.020-0.050% of Al, 0.0040-0.0300% of N, at least one of 0-2.00% of Ni and 0-2.00% of Mo as desired, and at least one of 0-0.10% of Nb, 0-0.200% of Ti, 0-0.0050% of B and 0-0.500% of V as desired, with the remainder consisting of Fe and unavoidable impurities, such that the spheroidizing annealing holding temperature T (ºC) satisfies the condition (A1 point-30)≤T≤(A1 point-5) and the spheroidizing annealing holding time t (h) satisfies the condition t≥120/(T-A1+50).
Provided is a Cu-based alloy powder that is suitable for processes accompanied by rapid melting and rapid solidification and that can provide a molded article having excellent characteristics. The powder is constituted of a Cu-based alloy. The Cu-based alloy contains 0.1-10.0 mass% of an element M that is one or more elements selected from Cr, Fe, Ni, Zr, and Nb; Si at more than 0 mass% and not more than 0.20 mass%; P at more than 0 mass% and not more than 0.10 mass%; and S at more than 0 mass% and not more than 0.10 mass%, with the balance being Cu and inevitable impurities. The ratio (D50/TD) for this powder of the average particle diameter D50 (μm) thereof to the tap density TD (Mg/m3) thereof is 0.2 × 10-5·m4/Mg to 20 × 10-5·m4/Mg. The sphericity of the powder is 0.80-0.95.
C22C 9/06 - Alloys based on copper with nickel or cobalt as the next major constituent
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
B33Y 70/00 - Materials specially adapted for additive manufacturing
In order to address the issue of providing a seed layer alloy that can obtain a large-capacity magnetic recording medium having excellent corrosion resistance, this seed layer alloy for a magnetic recording medium includes: at least at least one type selected from the group consisting of Ni, Fe, and Co; at least one type of element M1 selected from the group consisting of W, Mo, Ta, Cr, V, and Nb; at least one type of element M2 selected from the group consisting of Au, Ag, Pd, Rh, Ir, Ru, Re, and Pt; and unavoidable impurities. The element M1 content is 2–13 at.%, the element M2 content is 2–13 at.%, and the sum of the element M1 content and the element M2 content is 4–15 at.%. When the Ni, Fe, and Co content ratio (at.%) Ni:Fe:Co in the alloy is X:Y:Z, X is 20–100, Y is 0–50, and Z is 0–60.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
G11B 5/738 - Base layers characterised by the intermediate layer
G11B 5/84 - Processes or apparatus specially adapted for manufacturing record carriers
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
24.
Ni-BASED SPUTTERING TARGET AND MAGNETIC RECORDING MEDIUM
The present invention addresses the problem of providing a Ni-based sputtering target having little bias in magnetic distribution within the target, and a magnetic recording medium having a seed layer formed using the Ni-based sputtering target. In order to solve this problem, the present invention provides a Ni-based sputtering target comprising an Fe-Ni-Co-M-based alloy which contains an additional element M and at least one element from among Fe and Co, the remainder comprising Ni and unavoidable impurities, wherein the microstructure of the Fe-Ni-Co-M-based alloy comprises a plurality of regions having different Ni content, the additional element M is present in each region, and the form in which the additional element M is present in each region is only as a solid solution of the additional element M, only as a compound of the additional element M and at least one element from among Fe, Ni, and Co, or as both a solid solution and a compound.
Provided is an alloy powder from which a magnetic member having an extremely high frequency FR can be manufactured. A powder for a magnetic member comprises a plurality of flat particles. Each of the flat particles comprises an Fe-based alloy which contains 6.5 to 32.0% by mass inclusive of Ni, 6.0 to 14.0% by mass inclusive of Al, 0 to 17.0% by mass inclusive of Co, 0 to 7.0% by mass inclusive of Cu and a remainder made up by Fe and unavoidable impurities. The average thickness Tav of the powder is 3.0 μm or less. The saturation magnetization Ms of the powder is 0.9T or more. The coercive force iHc of the powder is 16 kA/m or more. The Fe-based alloy has a structure produced by spinodal decomposition.
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
C22C 33/02 - Making ferrous alloys by powder metallurgy
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
NFNF= D50×TD/ρ (In the formulae, D50 denotes the median diameter of the powder, TD denotes the tap density of the powder, and ρ denotes the true density of the powder.)
H01F 1/147 - Alloys characterised by their composition
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
H01F 1/147 - Alloys characterised by their composition
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
29.
Co-BASED ALLOY FOR USE IN SOFT MAGNETIC LAYER OF MAGNETIC RECORDING MEDIUM
The present invention addresses the problem of providing a Co-based alloy with which it is possible to produce a target exhibiting excellent toughness and to obtain a soft magnetic layer having a low saturation magnetic flux density. With a view to solving said problem, the present invention provides a Co-based alloy for use in a soft magnetic layer of a magnetic recording medium, said alloy comprising 11-25 at% of one or more types of element XA selected from the group consisting of Nb, Mo, Ta, and W, 0.4-10 at% of one or more types of element XB selected from the group consisting of V, Cr, Mn, Ni, Cu, and Zn, with the remainder being Co, Fe, and unavoidable impurities, wherein the total content of the element XA and the element XB is less than 30 at%.
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
G11B 5/738 - Base layers characterised by the intermediate layer
G11B 5/84 - Processes or apparatus specially adapted for manufacturing record carriers
G11B 5/851 - Coating a support with a magnetic layer by sputtering
H01F 10/16 - Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing cobalt
H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
30.
NITRIDE-DISPERSED MOLDED BODY WHICH IS FORMED OF Ni-BASED ALLOY
The present invention addresses the problem of providing a molded body which is formed of an Ni-based alloy, and which exhibits excellent strength in a high temperature environment. In order to solve this problem, the present invention provides a molded body of a powder of an Ni-based alloy which contains: one or more elements selected from the group consisting of from 40.0% by mass to 80.0% by mass (inclusive) of Ni, from 13.0% by mass to 30.0% by mass (inclusive) of Cr; from 0.001% by mass to 0.30% by mass (inclusive) of C, from 0.10% by mass to 5.0% by mass (inclusive) of Al, from 0.10% by mass to 12.0% by mass (inclusive) of Mo, from 0.10% by mass to 20.0% by mass (inclusive) of Co, and from 0.10% by mass to 6.0% by mass (inclusive) of W; from 0.1% by mass to 8.0% by mass (inclusive) in total of one or more elements selected from the group consisting of Nb, Ti and Zr; from 0.010% by mass to 0.20% by mass (inclusive) of N; and from 0% by mass to 0.50% by mass (inclusive) of Si, with the balance being made up of Fe and unavoidable impurities. In addition, nitrides are dispersed in this molded body.
With the present invention, provided is a negative electrode material with which it is possible to obtain a power storage device in which the storage capacity is high, and a decrease in storage capacity due to repeated charging and discharging is suppressed. This negative electrode material for a power storage device comprises many particles. Each particle has a mother particle made of an Si based alloy, and a covering layer that covers this mother particle and is made of a carbon based material. This Si based alloy includes Si: 50 to 95 at% [inclusive], Cr: 5 to 20 at.% [inclusive], Ti: 5 to 20 at.% [inclusive], and element A: 0 to 10 at.% [inclusive]. Element A is one or more elements selected from the group consisting of V, Fe, Ni, Mo, Nb, Co, Al, and Sn.
In order to provide a Ni-based alloy for a seed layer, the alloy enabling achievement of a seed layer that exhibits enhanced alignment to the (111) plane and that has a fine crystal grain size, a sputtering target which contains said alloy, and a magnetic recording medium having a seed layer which contains said alloy, provided is a Ni-based alloy for a seed layer in a magnetic recording medium, the alloy containing one or more types of elements RE selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, wherein the content rate of said elements RE falls within 1-10 at%.
G11B 5/84 - Processes or apparatus specially adapted for manufacturing record carriers
H01F 10/14 - Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
Provided is a Cu-based alloy powder which is suitable for a process involving rapid melting and rapid solidification and can be shaped into an article having excellent properties. The powder is made from a Cu-based alloy. The Cu-based alloy contains at least one element M selected from V, Fe, Zr, Nb, Hf and Ta in an amount of 0.1 to 5.0% by mass inclusive. The remainder is made up by Cu and unavoidable impurities. A D50/TD value, which is the ratio of an average particle diameter D50 (μm) of the powder to a tap density TD (Mg/m3) of the powder, is 0.2×10-5·m4/Mg to 20×10-5·m4/Mg inclusive.
Provided is a powder for a mold, wherein solidification cracking is unlikely to occur even if the powder is used in a process accompanied by rapid melting and rapid solidification. This powder for the mold is made of an alloy. The alloy contains 0.25-0.45 mass% of C, 0.01-1.20 mass% of Si, more than 0 mass% but not more than 1.50 mass% of Mn, 2.0-5.5 mass% of Cr, and 0.2-2.1 mass% of V. The alloy further contains one or more of more than 0 mass% but not more than 3.0 mass% of Mo, more than 0 mass% but not more than 9.5 mass% of W, and more than 0 mass% but not more than 4.5 mass% of Co. The remaining part of the alloy is Fe and inevitable impurities. The alloy satisfies (Mn%)3/S%>6.7. The total content of P, S, and B is 0.020 mass% or lower.
The present invention addresses the problem of providing a target material (2) that is not prone to cracking during sputtering, and in order to solve this problem, the present invention provides a sputtering target material (2) including an alloy including Ta and Cr, the remainder being unavoidable impurities, wherein the flexural strength thereof measured by a three-point bending test is at least 400 MPa.
The present invention addresses the issue of providing: a stainless steel powder unlikely to have quenching cracks in a molded article in a molding method including a rapid melting and rapid quenching process; a powder material for molding, including said stainless steel powder; and a production method for molded articles using said stainless steel powder. In order to solve the issue, provided is a stainless steel powder that includes 10.5%–20.0% by mass Cr, 1.0%–15.0% by mass Ni, a total of 0%–2.0% of C, Si, Mn, and N, a total of 0%–5.0% by mass Mo, Cu, and Nb, and a total of 0%–0.03% by mass P and S, with the remainder being Fe and unavoidable impurities. The stainless steel fulfills formula (1): Creq/Nieq ≥ 1.5.
Provided is an Fe-based metal powder which is suitable for a process accompanied by rapid melting and rapid solidification, and from which a molded object having excellent characteristics is obtained. This metal powder for molding is made from an Fe-based alloy, wherein the Fe-based alloy comprises: 15.0-21.0 mass% of Ni; 0-10.0 mass% of Co; 0-7.0 mass% of Mo; 0.1-6.0 mass% of Ti; and 0.1-3.0 mass% of Al, with the balance being Fe and inevitable impurities.
This steel having high hardness and excellent ductility includes, in mass%, one or more species of C: 0.40-1.00%, Si: 0.10-2.00%, Mn: 0.10-1.00%, P: 0.030% or less, S: 0.030% or less, Cr: 1.10-3.20%, Al: 0.010-0.10%, and V: 0.15-0.50%, and further Ni: 2.50% or less, Mo: 1.00% or less, where (C + V) accounts for, in mass%, 0.60% or greater, and the balance is Fe and unavoidable impurities. The steel has a martensitic microstructure in which Fe-based ε-carbides are finely dispersed, and the former austenite grain size is 20 μm or less.
Provided is an Ni-Cr based alloy brazing material containing, as % by mass, more than 15% and less than 30% Cr, more than 3% and less than 12% P, less than 8% (including 0%) Si, more than 0.01% and less than 0.06% C, less than 0.1% (including 0%) Ti+Zr, more than 0.01% and less than 0.1% V, less than 0.01% (including 0%) Al, more than 0.005% and less than 0.025% O, more than 0.001% and less than 0.050% N, and less than 0.1% (including 0%) Nb, the remaining portion comprising Ni and unavoidable impurities, wherein, if no Nb is added, formula (1): 0.2≤0.24 V%/C%≤1.0 is satisfied, and if Nb is added, formula (2): 0.2≤(0.24 V%+0.13 Nb%)/C%≤1.0 is satisfied. Employing the present invention makes it possible to obtain an Ni-Cr based alloy brazing material which has a trace amount of added V, for use in the manufacture of stainless steel heat exchangers and the like, and which has a low melting temperature, is inexpensive, and has excellent corrosion resistance and strength.
The purpose of the present invention is to provide an alloy having properties required of high strength and low thermal expansion alloys, wherein a wide range of conditions can be used for heat treatment when manufacturing the alloy to obtain a desired hardness. In order to achieve the purpose, there is provided a high strength and low thermal expansion alloy having a predetermined alloy composition and having grains in which a (Mo,V)C-based composite carbide is present, wherein the value of ([Mo]+2.8[V])/[C] is 9.6-21.7 and the value of {Mo}/{V} is 2.0-4.0, [Mo], [V], and [C] being, respectively, the amounts of Mo, V, and C contained in the alloy, {Mo} and {V} being, respectively, the amounts of Mo and V contained in the (Mo,V)C-based composite carbide.
The purpose of the present invention is to provide an alloy wire having properties required of high strength and low thermal expansion alloy wires, wherein a wide range of conditions can be used for heat treatment when manufacturing the alloy wire to obtain a desired hardness. In order to achieve the purpose, there is provided a high strength and low thermal expansion alloy wire having a predetermined alloy composition and having grains in which a (Mo,V)C-based composite carbide is present, wherein the value of ([Mo]+2.8[V])/[C] is 9.6-21.7 and the value of {Mo}/{V} is 2.0-4.0, [Mo], [V], and [C] being, respectively, the amounts of Mo, V, and C contained in the alloy wire, {Mo} and {V} being, respectively, the amounts of Mo and V contained in the (Mo,V)C-based composite carbide.
Provided is a negative electrode material for a power storage device in which: the material is an Si-based alloy; the Si-based alloy has (1) an Si primary phase in which 0.01-20 at.% of Ge relative to the Si-based alloy is in solid solution, and (2) a compound phase containing a silicide; the silicide contains Cr and also contains one or more elements selected from the group consisting of Ti, Ni, and Co; the Si crystallite size of the Si primary phase (1) is 20 nm or less; and the crystallite size of the compound phase (2) is 30 nm or less. The present invention yields a negative electrode for a power storage device in which the storage capacity is high and the reduction of storage capacity due to repeated charging and discharging is minimized.
Provided is a negative electrode material for a storage device, the material comprising: a matrix formed of a metal glass containing Fe and/or Ni; and an Si primary phase dispersed in the matrix. The Si crystallite size in the Si primary phase is 20 nm or smaller. According to the present invention, obtained is a negative electrode for a storage device, which has a large storage capacity, and for which a reduction in storage capacity due to repeated charging and discharging is suppressed.
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22C 45/02 - Amorphous alloys with iron as the major constituent
C22C 45/04 - Amorphous alloys with nickel or cobalt as the major constituent
H01G 11/30 - Electrodes characterised by their material
44.
SOFT MAGNETIC FLAT POWDER HAVING HIGH MAGNETIC PERMEABILITY AND HIGH WEATHER RESISTANCE, AND SOFT MAGNETIC RESIN COMPOSITION CONTAINING SOFT MAGNETIC FLAT POWDER
The purpose of the present invention is to provide: a soft magnetic flat powder having high magnetic permeability and high weather resistance; a soft magnetic resin composition containing the soft magnetic flat powder; and a magnetic sheet. In order to achieve the purpose, provided is a soft magnetic flat powder which is an aggregate of a plurality of soft magnetic flat particles, wherein each of the plurality of soft magnetic flat particles comprises an Fe-Si-Al-based flat particle and a coating layer formed on the surface of the Fe-Si-Al-based flat particle, and the total C amount (mass%) contained in the coating layer of the plurality of soft magnetic flat particles/the BET specific surface area (m2/g) of the soft magnetic flat powder is 0.01-1.00 (mass%·g/m2).
H01F 1/147 - Alloys characterised by their composition
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
45.
MAGNETIC FLAT POWDER AND MAGNETIC SHEET CONTAINING SAME
The purpose of the present invention is to provide: a magnetic flat powder which has a high real-part magnetic permeability (μ') and a high saturated magnetic-flux density and which also has a high FR; and a magnetic sheet containing same. In order to achieve the foregoing, the present invention provides a magnetic flat powder which contains a plurality of magnetic flat particles, wherein: each of the plurality of magnetic flat particles contains, in terms of mass%, 0.1-3.0% of C, not less than 1.0% but less than 10% of Cr, 0-1.5% of Si, 0-1.5% of Mn, 0-1.5% of Ni and 0-10% of Co, with the remainder comprising Fe and unavoidable impurities; the saturated magnetic flux density of the magnetic flat powder is more than 1.2 T; and the average particle diameter D50 of the magnetic flat powder is 10-65 μm.
H01F 1/28 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
The purpose of the present invention is to provide a soft magnetic flat powder with which it is possible to prevent oxidation during the flattening of metal powder and achieve a low coercive force. In order to achieve the purpose, there is provided a soft magnetic flat powder comprising a plurality of soft flat particles, wherein each of the plurality of soft magnetic flat particles is a metal particle containing, in mass%, 78-83% of Fe, more than 0% and at most 13% of Si, more than 5.0% and at most 13% of Al, and 1.0-5.0% total of at least one among Cr, Ni, Mo, Cu, and Ti, with the remainder comprising Fe and inevitable impurities.
Provided is hot work tool steel of excellent thermal conductivity that contains, in mass%, C: 0.20-0.50%, Si: 0.50% or less, Mn: 0.92% or less, Cr: 4.00% or less, Ni: 2.00% or less, 2Mo+W: less than 1.80% (Mo: less than 0.90% and W: less than 1.80%), V: greater than 0.10-0.61%, N: 0.040% or less, and Al: 0.080% or less, the balance being Fe and unavoidable impurities. TC, which is represented by the equation: TC=68.0-6.5Mn-5.7Cr-3.1V-4.4Mo-2.2W-24.7C-21.2N-6.5Ni-1.7Si+3.2A (the respective element symbols in the equation represent mass% and A in the equation represents the total area ratio (%) of all carbides in the tempered state), satisfies the relationship TC≥32.5. Said hot work tool steel provides hot work tool steel that is provided with a combination of high hardness, high toughness and high thermal conductivity and that can be used for die casting and hot stamping.
The purpose of the present invention is to provide: a soft magnetic flat powder having high electrical resistance and corrosion resistance; and a magnetic sheet comprising the soft magnetic flat powder. In order to fulfill the purpose, the present invention provides a soft magnetic flat powder comprising a plurality of soft magnetic flat particles, wherein each of the plurality of soft magnetic flat particles is provided with an Fe-based alloy flat particle and a coating layer formed on the surface of the Fe-based alloy flat particle, the coating layer contains one or two or more components selected from the group consisting of chromic acid, a hydrate thereof, a metal salt of an inorganic acid, and a hydrate of the metal salt, the inorganic acid is selected from the group consisting of sulfuric acid, nitric acid, chromic acid, phosphoric acid, hydrofluoric acid, and acetic acid, the metal salt is selected from the group consisting of Na salt, Al salt, Ti salt, Cr salt, Ni salt, Ga salt, and Zr salt, and the coating layer has a thickness of at least 10 nm.
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
Provided is a magnetic powder for high-frequency applications, which contains, in mass%, 0.2-5.0% of C and 0.1-30% in total of one or more elements selected from among group 4-6 elements, Mn and Ni, with the balance made up of Fe and/or Co (including 0% of Co) and unavoidable impurities, while having a saturation magnetization of more than 1.0 T and satisfying formula (1) Co%/(Co% + Fe%) ≤ 0.50. This magnetic powder provides: a non-conventional metal magnetic powder which has both a saturation magnetization of more than 1.0 T and a high FR of 200 MHz or more; and a magnetic resin composition which uses this metal magnetic powder.
H01F 1/147 - Alloys characterised by their composition
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
50.
FLAT POWDER FOR HIGH FREQUENCY APPLICATIONS AND MAGNETIC SHEET
Provided is a flat powder for high frequency applications. The flat powder contains 1.5-3.0% of C, 10-20% of Cr, and 0.03-0.30% of N in mass%, with the remainder comprising Fe and inevitable impurities, has an average particle diameter of 200 μm or less, an average thickness of 5 μm or less, an average aspect ratio of 5 or more, and a saturation magnetization of greater than 1.0 T, wherein the frequency (FR) at which tanδ is 0.1 is at least 200 MHz. Using this flat powder, a magnetic flat metal powder, having both a saturation magnetization greater than 1.0 T and a high FR of at least 200 MHz, which does not exist in the prior art, and a magnetic sheet using the magnetic flat metal powder are provided.
The present invention addresses the problem of providing: an Ni-Ta system alloy which is free from composition unevenness and has improved mechanical strength, and wherein Ta compound phases are finely dispersed by adding a predetermined amount of Fe and/or Co into the Ni-Ta system alloy; a sputtering target material which contains this Ni-Ta system alloy; and a magnetic recording medium. In order to solve the problem, the present invention provides an Ni-Ta system alloy which contains 15-50 at% of Ta and 0-10 at% in total of one or more elements selected from among Al, Ga, In, Si, Ge, Sn, Zr, Ti, Hf, B, Cu, P, C, Ru and Cr, with the balance made up of Ni, unavoidable impurities and Fe and/or Co. This Ni-Ta system alloy is configured such that: the proportions of the Ni content, the Fe content and the Co content relative to the total content of Ni, Fe and Co are 20-98.5%, 0-50% and 0-60%, respectively; the Ni-Ta system alloy has an FCC phase and a Ta compound phase; and the diameter of the maximum inscribed circle that is able to be drawn inside the Ta compound phase is 10 μm or less.
Provided is a negative electrode material for electricity storage devices. This negative electrode material is composed of a powder that is an assembly of a number of particles; the material of the particles is an Si system alloy containing Si, Cr and X; the Si system alloy comprises (1) an Si phase which is mainly composed of Si and (2) a compound phase; the compound phase (2) contains (2-1) an Si-(Cr, X) compound phase or (2-2) a composite phase of an Si-(Cr, X) compound and an Si-X compound; and mathematical formula (I) is satisfied. Consequently, the present invention enables the achievement of a negative electrode for electricity storage devices, which has a high electricity storage capacity, while having a high retention rate of this electricity storage capacity. │RCr - RX│/RCr ≤ 0.2 (I) (In mathematical formula (I), RCr represents the atomic radius of Cr; and RX represents the atomic radius of element X.)
Provided is a sputtering target material which has an improved strength without using pure Ta, can be prevented from forming cracks or particles during sputtering, and can be prevented from having a non-uniform composition in a sputtered film. The sputtering target material according to the present invention comprises, in at.%, 35-50% of Ta, the remaining portion being Ni and incidental impurities, wherein the material consists only of a Ni2Ta compound phase and a NiTa compound phase, and the microstructures of the Ni2Ta compound phase and the NiTa compound phase have a maximum inscribed circle diameter of 10 μm or less.
The present invention provides: an alloy for seed layers of Ni-based magnetic recording media, namely for seed layers of perpendicular magnetic recording media, which has a small crystal grain size; and a sputtering target material. Specifically, an Ni-based sputtering target material according to the present invention is formed of an Ni-Fe-Co-M alloy, and is characterized in that: the alloy contains, as M1 element, one or more elements selected from among Au, Ag, Pd, Rh, Ir, Ru, Re and Pt in a total amount of 2-20 at%, with the balance made up of Ni, Fe, Co and unavoidable impurities; and the content ratios of Ni, Fe and Co satisfy Ni:Fe:Co = 100-20:0-50:0-60 in terms of at% ratio.
The present invention addresses the problem of providing a high-hardness high-toughness alloy powder that can be used in hard particles for sintering, a hard friction powder, a raw material powder for a high-hardness powder metallurgy material having exceptional hydrochloric acid corrosion resistance, a shot peening projection material, or the like. In order to solve this problem, the present invention provides a high-hardness high-toughness alloy powder characterized in containing, in percent by mass, a total of 25-50% of Mo and/or W, 5-15% of Cr, 0-0.3% of Si, 0-35% of Mn, 0-20% of V, and 0-15% of Fe, the balance being Co and unavoidable impurities.
The purpose of the present invention is to reduce particle generation during sputtering. Provided to achieve this purpose is a sputtering target material containing, by at.%, 10-50% B, wherein the remainder comprises unavoidable impurities and at least one of Co and Fe. The value of the intensity ratio [I((CoFe)3B)/I((CoFe)2B)], which is the ratio of the X-ray diffraction intensity [I((CoFe)3B)] of (CoFe)3B(121) to the X-ray diffraction intensity [I((CoFe)2B)] of (CoFe)2B(200), the intensity ratio [I(Co3B)/I(Co2B)], which is the ratio of the X-ray diffraction intensity [I(Co3B)] of Co3B(121) to the X-ray diffraction intensity [I(Co2B)] of Co2B(200), or the intensity ratio [I(Fe3B)/I(Fe2B)], which is the ratio of the X-ray diffraction intensity [I(Fe3B)] of Fe3B(121) to the X-ray diffraction intensity [I(Fe2B)] of Fe2B(200) does not exceed 1.50.
The purpose of the present invention is to improve the mechanical strength of a sputtering target. Provided to achieve this purpose is a sputtering target material that is characterized by containing B in a proportion of 10-50 at.% and at least one element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Ru, Rh, Ir, Ni, Pd, Pt, Cu, and Ag in a combined proportion of 0-20 at.%, and is further characterized in that the remainder comprises unavoidable impurities and at least one of Co and Fe, and the hydrogen content does not exceed 20 ppm.
The purpose of the present invention is to provide: a non-magnetic amorphous Co alloy that can prevent the occurrence of crystallization during high-temperature treatment (for example, heat treatment at approximately 400–500°C during magnetic layer formation on a heat-assisted magnetic recording medium); and a sputtering target material and a magnetic recording medium that use the Co alloy. In order to fulfill this purpose, the present invention provides a non-magnetic amorphous alloy that includes: 0 at% to 2 at% inclusive of Fe; 5 at% to 20 at% inclusive of an A group element comprising one or more elements selected from Ti, Zr, and Hf; 16 at% to 50 at% inclusive of a B group element comprising two or more elements selected from Cr, Mo, and W; 0 at% to 25 at% inclusive of a C group element comprising one or more elements selected from V, Nb, and Ta; 0 at% to 20 at% inclusive of a D group element comprising one or more elements selected from Si, Ge, P, B, and C; and a remainder which comprises Co and unavoidable impurities. The sum of the content of the A group element and the content of the B group element is more than 35 at% to 70 at%.
Provided is a Ni-based super alloy powder for laminate molding comprising C: 0-0.2%, Si: 0.05-1.0%, Mn: 0.05-1.0%, Cr: 10.0-25.0%, Fe: 0.01-10%, Al: 0.1-8.0%, Ti:0.1-8.0%, S: ≦ 0.002% and/or N: ≦ 0.10%, with the remainder being Ni and unavoidable impurities. With this Ni-based super alloy powder for laminate molding, a sound sintered compact can be obtained even when sintering is carried out in a laminate molding method or other rapid melting/rapid solidification process.
Provided is a powder for conductive fillers, which is composed of a plurality of particles, and wherein: the material for each particle is an alloy that contains from 0.1% by mass to 10% by mass (inclusive) of Bi, with the balance made up of Cu and unavoidable impurities; the alloy contains a first CuBi phase satisfying mathematical formula (1) and a second CuBi phase satisfying mathematical formula (2); each of the particles has a surface layer having a thickness of 100 nm; and the ratio P1 of the first CuBi phase in the surface layer is 5% by mass or more. This powder for conductive fillers has excellent conductivity, and is able to be obtained at low cost. 0.010 ≤ x/y ≤ 1 (1) 0 < x/y ≤ 0.005 (2) (In mathematical formulae (1) and (2), x represents the mass content of Bi and y represents the mass content of Cu.)
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C22C 9/04 - Alloys based on copper with zinc as the next major constituent
C22C 9/08 - Alloys based on copper with lead as the next major constituent
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
H01B 5/00 - Non-insulated conductors or conductive bodies characterised by their form
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
The purpose of the present invention is to provide a sintered alloy having high mechanical strength (particularly high toughness suitable for a sputtering target material) and a sputtering target material which includes the sintered alloy, and the present invention provides a sintered alloy containing: an A-group element comprising Mn and one or more of Ga, Zn, Sn, Ge, Al, and Co; and, as needed, a B-group element comprising one or more of Fe, Ni, Cu, Ti, V, Cr, Si, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Ta, W, Re, Ir, Pt, Au, Bi, La, Ce, Nd, Sm, Gd, Tb, Dy, and Ho; the remainder being unavoidable impurities, the sintered alloy having one or more types of first through sixth Mn phases satisfying a predetermined condition.
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
The present invention provides a steel for chisels and a chisel, which have improved durability. The steel that constitutes the chisel (10) according to the present invention is characterized by comprising 0.40-0.45 mass% carbon, 0.50-0.80 mass% silicon, 1.00-1.30 mass% manganese, 0.001-0.005 mass% sulfur, 2.90-3.80 mass% chromium, and 0.20-0.40 mass% molybdenum, with the remainder being composed of iron and unavoidable impurities; and by the ideal critical diameter DI, as defined in formula (1), being 600 or greater. DI = 7・(%C)1/2・(1 + 0.64・%Si)・(1 + 4.1・%Mn)・(1 + 2.83・%P) ・(1 – 0.62・%S) ・(1 + 2.33・%Cr) ・(1 + 3.14・%Mo)
The present invention addresses the problem of providing a metal powder having excellent various properties. In order to solve the problem, the present invention provides a metal powder which is composed of many spherical particles, contains at last one of Ni, Fe and Co, contains Ni, Fe and Co in a total content (T. C.) of 50% by mass or more, has a cumulative 10 vol% particle diameter D10 of 1.0 μm or more, and has a Y value of 7.5 to 24.0 inclusive wherein the Y value is a value calculated in accordance with the following mathematical formula: Y = D50 × ρ × S (wherein D50 represents a cumulative 50 vol% particle diameter of the powder; ρ represents a true density of the powder; and S represents the specific surface area of the powder).
Provided are: a flat soft magnetic powder characterized by comprising a Fe-Si-Al alloy, the flat soft magnetic powder having an average particle diameter of 43-60 μm, a coercive force Hc, as measured by applying a magnetic field in the longitudinal direction of the flat powder, of 106 A/m or less, a ratio of tapped density to true density of 0.17 or less, an oxygen content of 0.6 mass% or less, a manganese content of 0.1-1.0 mass%, and comprising a remainder consisting of unavoidable impurities; and a production method therefor. The flat soft magnetic powder exerts particularly high magnetic permeability when being used as a magnetic sheet.
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
H01F 1/147 - Alloys characterised by their composition
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
65.
Ni-BASED SPUTTERING TARGET MATERIAL AND MAGNETIC RECORDING MEDIUM
The present invention addresses the problem of providing an Ni-based sputtering target material in which permeability is low, a strong magnetic flux leakage is obtained, and the usage efficiency in magnetron sputtering is high. In order to solve this problem, this invention provides an Ni-based sputtering target material containing an Fex-Niy-Coz-M-based alloy, wherein the Ni-based sputtering target material is characterized in that: the alloy contains, as element M, a total of 2-20 at% of one or more elements M1 selected from W, Mo, Ta, Cr, V, and Nb and a total of 0-10 at% of one or more element M2 selected from Al, Ga, In, Si, Ge, Sn, Zr, Ti, Hf, B, Cu, P, C, and Ru, with the remainder made up of Ni, one or both of Fe and Co, and unavoidable impurities; when x + y + z = 100, x is 0-50, y is 20-98, and z is 0-60; the alloy has a microstructure containing Feα-Niβ-Coγ; when α＋β＋γ = 100, β is 20-35 and γ is 30 or less; and the microstructure contains the element M solid-solved in the Feα-Niβ-Coγ phase, and/or the element M forming a compound with at least one element from among Fe, Ni, and Co.
Provided is an Ni-based alloy sputtering target material having high usage efficiency and low magnetic permeability with which a strong leakage magnetic flux may be obtained, said material containing a (NiX‒FeY‒CoZ)‒M alloy, wherein the Ni based alloy sputtering target material is characterized in that the alloy contains as the element M a total of 2-20 at.% of one or more M1 elements selected from W, Mo, Ta, Cr, V, and Nb, and a total of 0-10 at.% of one or more M2 elements selected from Al, Ga, In, Si, Ge, Sn, Zr, Ti, Hf, B, Cu, P, C, and Ru, with the remainder comprising Ni, Fe, Co, and unavoidable impurities; where X + Y + Z = 100, 20 ≤ X ≤ 98, 0 ≤ Y ≤ 50, and 0 ≤ Z ≤ 60; and the alloy has a microstructure having an Ni-M phase as a matrix phase, the microstructure being one in which an Fe phase and/or a Co phase are dispersed within the matrix phase.
G11B 5/738 - Base layers characterised by the intermediate layer
G11B 5/851 - Coating a support with a magnetic layer by sputtering
H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
67.
ALLOY FOR SEED LAYER OF Ni-Cu-BASED MAGNETIC RECORDING MEDIUM, SPUTTERING TARGET MATERIAL, AND MAGNETIC RECORDING MEDIUM
The objective of the present invention is to provide: an alloy for a seed layer of a Ni-Cu-based magnetic recording medium, the alloy being used for a seed layer in a perpendicular magnetic recording medium; and a sputtering target material. To achieve this objective, the present invention provides a Ni-Cu-M alloy for a seed layer of a magnetic recording medium, the Ni-Cu-M alloy comprising: 1-50 at% Cu; as the M element(s), 2-20 at% of at least one type of M1 element selected from W, Mo, Ta, Cr, V, and Nb, and 0-10 at% of at least one type of M3 element selected from Al, Ga, In, Si, Ge, Sn, Zr, Ti, Hf, B, P, C, and Ru; and Ni and inevitable impurities as the remainder. The present invention also provides a sputtering target material using said alloy, and a magnetic recording medium.
Provided is a metal powder for modeling, which is composed of a plurality of particles that contain at least one of Ni, Fe and Co in such a manner that the total content of Ni, Fe and Co is 50% by mass or more. The ratio P1 of the number of particles having a circularity of less than 0.80 relative to the total number of particles is 10% or less, and the ratio P3 of the number of particles having a circularity of 0.95 or more relative to the total number of particles is 50% or more. This metal powder for modeling is excellent in terms of various properties.
[Problem] To provide a soft-magnetic flat powder used primarily in an RFID member, the soft-magnetic flat powder having a high-magnetic-permeability real part µ’ and a low-magnetic-permeability imaginary part µ’’ despite having an average particle diameter of 30 µm or greater, and a method for manufacturing the soft-magnetic flat powder. [Solution] A flat powder obtained by flattening of a soft-magnetic flat powder, the soft-magnetic flat powder being characterized in that the average particle diameter thereof is greater than 30 µm, the coercive force thereof measured by applying a magnetic field in the longitudinal direction of the flat powder is in the range of 240-640 A/m, the saturation magnetization thereof is 1.0 T or greater, and the aspect ratio thereof is 30 or greater. A method for manufacturing the soft-magnetic flat powder.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
70.
SOFT-MAGNETIC FLAT POWDER AND PROCESS FOR PRODUCING SAME
The present invention provides: a soft-magnetic flat powder which has a small average particle diameter, excellent formability into sheet, and high magnetic permeability; and a process for producing the flat powder. This soft-magnetic flat powder is a flat powder constituted of an Fe-Si-Al alloy and has an average particle diameter D50 of 30 μm or larger but less than 50 μm, a coercive force Hc, as measured while applying a magnetic field along the major-axis direction of the flat powder, of 176 A/m or less, a tap density/true density ratio of 0.18 or less, a specific surface area of 0.6 m2/g or larger in terms of BET value, and an oxygen content of 0.6 mass% or lower, the BET value and the oxygen content satisfying expression (1): (oxygen content)/(BET value)≤0.50 (provided that 0 is excluded).
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
H01F 1/147 - Alloys characterised by their composition
Provided is a powder for conductive fillers that is made of a Si-based alloy, wherein: the Si-based alloy contains an element X1, unavoidable impurities, and 50–95 mass% of Si; the alloy has a Si phase, and a silicide phase containing the Si and the element X1; and the alloy has a density of 2.0–6.0 Mg/m3. This powder for conductive fillers has excellent conductivity and can be produced at low cost.
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
72.
Si-BASED ALLOY NEGATIVE ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICES AND ELECTRODE USING SAME
The present invention provides: an Si-based alloy negative electrode material which enables the achievement of excellent battery characteristics; and an electrode. This negative electrode material is a negative electrode material which is formed of an Si-based alloy and is for use in electricity storage devices wherein lithium ions move during charging and discharging. The negative electrode material which is formed of an Si-based alloy has an Si main phase that is composed of Si and a compound phase that is composed of Si and one or more elements other than Si. The compound phase comprises a phase containing a phase composed of Si and Cr or a phase composed of Si, Cr and Ti. The Si crystallite size in the Si main phase is 30 nm or less, and the crystallite size in the compound phase composed of Si and Cr or in the compound phase composed of Si, Cr and Ti is 40 nm or less. The total content of Cr and Ti is 21.1-40 at.%, and the ratio of Cr to Ti, specifically Cr%/(Cr% + Ti%) is within the range of 0.15-1.00.
Provided is a powder for an electroconductive filler containing 1-30% by mass inclusive of Ag, and 1-30% by mass inlcusive of Bi, the remainder comprising Cu and a Cu-Ag-Bi alloy, which is an inevitable impurity. This powder for a conductive filler has exceptional electroconductivity and can be attained at low cost.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C22C 9/04 - Alloys based on copper with zinc as the next major constituent
C22C 9/08 - Alloys based on copper with lead as the next major constituent
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
H01B 5/00 - Non-insulated conductors or conductive bodies characterised by their form
74.
SOFT MAGNETIC ALLOY FOR MAGNETIC RECORDING, SPUTTERING TARGET MATERIAL AND MAGNETIC RECORDING MEDIUM
Provided are: a Co-based soft magnetic alloy for magnetic recording, which is used as a soft magnetic layer in a perpendicular magnetic recording medium; a sputtering target material; and a magnetic recording medium. This soft magnetic alloy for magnetic recording has an Fe:Co ratio of from 10:90 to 70:30 in at.%, and contains one or more group A elements that are selected from among Ta, Nb and V in an amount of 0.5-29.5% and one or more group B elements that are selected from among Cr, Mo and W in an amount of 0.0-29.5%, with the total content of the group A elements and the group B elements being 10-30%, while having a hydrogen content of less than 20 ppm with the balance made up of Co, Fe and unavoidable impurities.
The present invention provides a material which is able to provide a negative electrode having high capacity, excellent electrical conductivity and excellent durability. A negative electrode (12) is provided with a collector (18) and a plurality of particles (22) that are affixed to the surface of the collector (18). The particles (22) are formed of an Si-based alloy. This alloy has (1) an Si phase that is mainly composed of Si and has a crystallite size of 30 nm or less, and (2) a compound phase that contains Si and Al, and additionally contains Cr or Ti, while having a crystallite size of 40 nm or less. It is preferable that the compound phase contains Si, Cr, Ti and Al. It is preferable that the Si phase contains Al that is solid-solved in Si.
This negative electrode (12) for an electricity-storage device comprises a collector (18) and a large number of particles (22) anchored to surfaces of said collector (18). Said particles (22) comprise a silicon-based alloy. The alloy contains two or more elements selected from the group consisting of chromium, aluminum, tin, titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum, tungsten, manganese, iron, cobalt, nickel, copper, carbon, boron, phosphorus, silver, zinc, indium, gallium, germanium, lead, bismuth, sulfur, and selenium, with the remainder consisting of silicon and unavoidable impurities. The alloy contains chromium, and the ratio Cr%/(Cr%+Ti%+Al%+Sn%+TCF%+TNF%) is greater than or equal to 0.05. The alloy contains aluminum and/or tin, and the ratio (Al%+Sn%)/(Cr%+Ti%+Al%+Sn%+TCF%+TNF%) is between 0.002 and 0.400, inclusive.
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 9/10 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
Provided is a powder comprising precipitation hardening stainless steel comprising, in terms of percentage by mass, ≦1.0% of Si, ≦1.8% of Mn, 3.0-8.5% of Ni, 12.0-20.0% of Cr, 0.1-2.5% of Mo, 1.0-5.0% of Cu, and/or 1.0-5.0% of Ti+Al, where Nb+Ta≧5C or Nb≧5C, N≦350 ppm, and the balance is Fe and unavoidable impurities, wherein a martensite structure contained in a sintered compact produced from the steel powder constitutes 90% or more of the precipitation hardening stainless steel powder. This precipitation hardening stainless steel powder yields high strength even when the sintered compact produced from the powder is aged without modification.
Provided is an AgCu-based conductive filler powder which is used for a conductive adhesive. This AgCu-based conductive filler powder is an atomized alloy powder which is formed of a Cu-Ag alloy having an Ag content of 1-30% by mass. This atomized alloy powder remains in the atomized state and has an AgCu phase having a mass ratio X of Ag to Cu (MAg/MCu) of 1.2 or more in the atomized powder outermost layer. This powder outermost layer is a layer from the powder outermost surface to 20 nm deep of the atomized alloy powder. According to the present invention, there is provided an AgCu-based conductive filler powder which has electrical conductivity equivalent to that of pure Ag and remains in the atomized alloy powder state without having necessity for Ag coating.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
Provided is an insulator-coated flat powder (2) that is for a magnetic member such as an electromagnetic wave absorber that is effective in blocking or absorbing electromagnetic waves in a frequency range of 1 MHz-50 GHz. The insulator-coated flat powder (2) is provided with flattened metal particles (4) and an insulating film (6) that is attached to the surface of the metal particles (4). The aspect ratio of the metal particles (4) is 10-300. The film (6) is a polymer that contains a titanium alkoxide. It is preferable that the ratio of the thickness of the film (6) to the thickness of the metal particles (4) in the powder (2) be 0.002-0.2. It is preferable that the titanium alkoxide in the powder (2) be an oligomer of a titanium alkoxide. It is preferable that the coverage rate of the metal particles (4) by the film (6) in the powder (2) be 20% or higher. It is preferable that the thickness of the film (6) in the powder (2) be 1 nm to 200 nm, and that the film (6) be an oxide of titanium.
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
H01F 1/00 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
H01F 1/33 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metallic particles having oxide skin
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
80.
Fe-Co-BASED ALLOY SPUTTERING TARGET MATERIAL, SOFT MAGNETIC THIN FILM LAYER, AND VERTICAL MAGNETIC RECORDING MEDIUM PRODUCED USING SAID SOFT MAGNETIC THIN FILM LAYER
A sputtering target material comprising a Fe-Co-based alloy which comprises at least one M element selected from Nb, Ta, Mo and W, Fe and/or Co and a remainder made up by unavoidable impurities, and which satisfies formula (1): (FeX-Co100-X)100-YMY [wherein the atomic ratios are as follows: 0 ≤ X ≤ 100 and 4 ≤ Y ≤ 28], wherein the microstructure of the sputtering target material has phases each mainly composed of Fe and Co and an intermetallic compound phase composed of Fe and/or Co and a M element, the phases each mainly composed of Fe and Co are surrounded, split and isolated by growing the intermetallic compound phase composed of Fe and/or Co and the M element in a net-like shape, and the number of the phases each mainly composed of Fe and Co which are isolated by the intermetallic compound phase is 300 or more per 10000 μm2 in the sputtering target material.
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
G11B 5/851 - Coating a support with a magnetic layer by sputtering
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 33/02 - Making ferrous alloys by powder metallurgy
Provided is a steel that is for a machine component, has a superior L1 life and rolling fatigue life, and of which in the steel, the oxygen, sulfur, and Al content, and the average compositional ratio and number percentage among all the oxides of MgO-Al2O3 oxides are stipulated. The steel is used in a machine component having a surface hardness of at least 58 HRC, has in the steel an oxygen content by mass ratio of no greater than 8 ppm, a sulfur content of no greater than 0.008 mass%, and an Al content of 0.005-0.030 mass%, and is such that the number of non-metallic inclusions having an inclusion size of at least 20 μm and less than 100 μm detected for every 1000 mm3 of volume of the steel material by means of an ultrasonic inspection method is no greater than 12.0, the number of non-metallic inclusions having an inclusion size of at least 100 μm detected for every 2.5 kg of the weight of the steel material by means of an ultrasonic inspection method is no greater than 2.0, the mass% ratio (MgO)/(Al2O3) in the average composition of the MgO-Al2O3 oxides present in the steel is stipulated to be in the range of 0.25-1.50, the number ratio of MgO-Al2O3 oxides among all the oxide inclusions is at least 70%, and the rolling fatigue life is excellent.
Provided is a low-cost Cu-added Ni-Cr-Fe-based alloy brazing material which has a low melting temperature, excellent corrosion resistance and excellent strength, and which is used for the production of a heat exchanger that is formed of stainless steel, or the like. This Ni-Cr-Fe-based alloy brazing material is composed of 15-30% by mass of Cr, 15-30% by mass of Fe, 2.1-7.5% by mass of Cu, 3-12% by mass of P, 0-8% by mass of Si, and the balance made up of Ni and unavoidable impurities. The total content of Cr and Fe is 30-54% by mass, and the total content of P and Si is 7-14% by mass.
Provided is a soft-magnetic flat powder for a magnetic sheet exhibiting excellent sheet-surface smoothness and high magnetic permeability. This soft-magnetic flat powder is obtained by flattening a soft-magnetic powder, and has an average particle size of 40-53 µm. The ratio of the tap density thereof to the true density thereof is 0.20-0.23. Furthermore, the soft-magnetic flat powder has an average aspect ratio of 10-40, an average thickness of 1.6-3.1 µm, an oxygen content of 0.16-0.48 mass%, and a nitrogen content of 10-250 ppm. According to the present invention, provided are: a soft-magnetic flat powder which, when used as a magnetic sheet, is capable of achieving a high magnetic permeability and few protrusion defects; and a magnetic sheet which has a high magnetic permeability, and in which said powder is used.
H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
84.
SHOT PEENING METHOD WITH WHICH HIGH COMPRESSIVE RESIDUAL STRESS IS OBTAINED
Provided is a shot pending method comprising: a process for preparing a steel member, the Vickers hardness of the surface of which is at least 920 HV; and a process for projecting a shot material, which has a Vickers hardness of at least 1000 HV and a density of at least 5.5 Mg/m3 and which satisfies the formula: HVshot ≥ 0.4 x HVsteel + 620 (in the formula, HVshot is the Vickers hardness (HV) of the shot material and HVsteel is the Vickers hardness (HV) of the surface of the steel member) With said method, it is possible to obtain high compressive residual stresses of 2200 MPa and above that have not been possible in the past.
B24C 1/10 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
B24C 11/00 - Selection of abrasive materials for abrasive blasts
85.
Si-ALLOY POWDER FOR LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR MANUFACTURING SAME
Provided is Si-alloy powder for a lithium-ion secondary battery negative electrode active material having a higher discharging capacity and excellent in cycle life and also provided is a method for manufacturing the Si-alloy powder. The Si-alloy powder for the lithium-ion secondary battery negative electrode according to the present invention is formed by containing C of 0.01 to 0.5 at%, either one element or two or more elements of Cr, Ti, Al, and Sn having a total amount of 10 to 25 at%, the remaining Si, and unavoidable impurities and satisfies the following two equations (1), (2): 0.15 ≤ Cr at%/(Cr at% + Ti at% + Al at% + Sn at%) ≤ 1.00 … (1) (Al at% + Sn at%)/(Cr at% + Ti at% + Al at% + Sn at%) ≤ 0.40 … (2)
Provided, as an orientation control layer for an MgO film, is a BCC-structure Cr-based alloy having a lattice constant for which mismatch with a (001) surface of the MgO is minimal, and a fine and uniform crystal grain distribution. Also provided is a sputtering target material comprising the alloy. This alloy is a magnetic recording-use Cr alloy, the alloy including, in atomic percent, one or more types of elements selected from a group comprising Al, Ti, Mo, W, V, and Ru, in total, in amounts for which the value of a in formula (1) is greater than or equal to 2.919 Å and less than or equal to 3.037 Å, a3 = N/ρΣ(MnAn) (1) [in the formula, a represents the lattice constant, N represents Avogadro's number, ρ represents calculated density (g/cm3), m represents the number of elements existing within a unit cell, and A represents atomic weight]. The alloy also includes one or more types of elements selected from a group comprising B, C, P, Si and Sn so as to total 0.1 to 5%, and the remainder comprising Cr and unavoidable impurities.
An Si-based alloy negative electrode material and an electrode are provided, the negative electrode material being capable of giving excellent battery characteristics because the negative electrode material has a microfined structure, has a controlled composition system whereby ionic conductivity, electronic conductivity, and an enhancing stress relaxation effect are heightened, and comprises an Si phase and an intermetallic-compound phase which have regulated crystallite sizes. This negative electrode material, which is for storage devices that involve the movement of lithium ions when charged/discharged, comprises an Si-based alloy. The negative electrode material comprising an Si-based alloy includes a main Si phase constituted of Si and a compound phase comprising Si and one or more other elements. The compound phase comprises a phase constituted of Si and Cr or of Si, Cr, and Ti. The main Si phase has an Si crystallite size of 30 nm or less, and the compound phase constituted of Si and Cr or of Si, Cr, and Ti has a crystallite size of 40 nm or less.
Provided are: a CoFe system alloy for soft magnetic thin film layers in perpendicular magnetic recording media; and a sputtering target material. This alloy is an alloy for soft magnetic film layers in perpendicular magnetic recording media, and is formed of one or more elements selected from among Ge, Ru, Rh, Pd, Re, Os, Ir and Pt, and one or more elements selected from among Sc, Y, lanthanoids (atomic numbers 57-71), Ti, Zr, Hf, V, Nb, Ta, Mo, W and B, with the balance made up of Co, Fe and unavoidable impurities. This alloy satisfies, in atom%, all of the following formulae (a)-(d): (a) 0.1% ≤ TCR ≤ 10%; (b) 5% ≤ TAM ≤ 25%; (c) 13% ≤ TCR/2 + TAM + TNM ≤ 25%; and (d) 0 ≤ Fe%/(Fe% + Co%) ≤ 0.80.
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
G11B 5/851 - Coating a support with a magnetic layer by sputtering
89.
Cu-BASED ALLOY FOR MAGNETIC RECORDING, SPUTTERING TARGET MATERIAL, AND PERPENDICULAR MAGNETIC RECORDING MEDIUM USING SAME
Provided is a Cu-based alloy for magnetic recording, which contains, in at%, (A) 1-23.4% of one or more elements selected from the group consisting of Cr, Mo and W, (B) 0-5% of one or more elements selected from the group consisting of Al, Si, Zn, Mn and Ni, and (C) 0-1% of one or more elements selected from the group consisting of Y, La, Ce, Nb, Sm, Gd, Tb and Dy, with the balance made up of Cu and unavoidable impurities. The alloy of the present invention has a high thermal conductivity and a high hardness at the same time, and is thus capable of providing a sputtering target that is suitable for the production of a thermally assisted magnetic recording medium and of providing a thermally assisted magnetic recording medium having a high impact resistance.
This steel material having low heat-treatment deformation comprises a machine structure steel used as components for motive power transmission such as gears or shafts used in automobiles, industrial machinery, or the like. The steel material comprising a machine structure steel containing, by mass%, 0.20-0.30% of C, 0.10-1.50% of Si, 0.10-1.20% of Mn, no greater than 0.030% of P, no greater than 0.030% of S, 1.30-2.50% of Cr, no greater than 0.30% of Cu, 0.008-0.300% of Al, no greater than 0.0030% of O, and 0.0020-0.0300% of N, the remainder comprising Fe and unavoidable impurities, has an Ms point of no greater than 460°C, a ratio (J9/J1.5) of the hardness (J9) at a distance of 9 mm from the quenched end of the steel material when measured by means of a Jominy end quenching method to the hardness (J1.5) at a distance of 1.5 mm of 0.70-0.85, and a ratio (J11/J1.5) of the hardness (J11) at a distance of 11 mm from the quenched end of the steel material to the hardness (1.5) at a distance of 1.5 mm of 0.67-0.78.
C21D 9/28 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
91.
SOFT MAGNETIC ALLOY FOR MAGNETIC RECORDING PURPOSES, SPUTTERING TARGET MATERIAL, AND MAGNETIC RECORDING MEDIUM
Provided is a soft magnetic alloy for magnetic recording purposes, in which the ratio 100Fe/(Fe + Co), expressed as an at.% ratio, is 0 to 70, and containing, expressed as at.%, (A) 10 to 30% of one or more elements selected from the group consisting of Mo and W; (B) 0 to 5% of one or more elements selected from the group consisting of Ti, Zr, and Hf; (C) 0 to 0.5% of one or more elements selected from the group consisting of V, Nb, and Ta; (D) 0 to 30% of one or more elements selected from the group consisting of Ni and Mn; (E) 0 to 10% of one or more elements selected from the group consisting of Cr, Al, and Cu; and (F) 0 to 10% of one or more elements selected from the group consisting of Si, Ge, P, B and C, with the remainder comprising Co and unavoidable impurities. This soft magnetic alloy for magnetic recording purposes exhibits outstanding thermal shock resistance.
H01F 10/13 - Amorphous metallic alloys, e.g. glassy metals
92.
Fe-Co ALLOY SPUTTERING TARGET MATERIAL AND METHOD FOR PRODUCING SAME, AND SOFT MAGNETIC THIN FILM LAYER AND PERPENDICULAR MAGNETIC RECORDING MEDIUM USING SAME
Provided is a Fe-Co alloy sputtering target material that does not crack during sputtering. This Fe-Co alloy sputtering target material comprises a Fe-Co-M alloy represented by formula (1): (Fex-Co100-x)100-yMy (In the formula, the atomic ratio is 0 ≤ x ≤ 100 and 4 ≤ y ≤ 28, and element M includes one or more of Nb, Ta, Mo, W, Cr, and V.). The microstructure of this sputtering target material has a phase in which Fe and Co are primary components, and an intermetallic compound phase comprising one or both of Fe and Co and element M, and the area occupied by a eutectic structure in the total microstructure is 30% or less.
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
G11B 5/851 - Coating a support with a magnetic layer by sputtering
H01F 10/16 - Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing cobalt
H01F 41/18 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
93.
STEEL MEMBER HAVING EXCELLENT ROLLING FATIGUE LIFE
Provided is a steel member for machine parts having an excellent rolling fatigue life, wherein the oxygen content and sulfur content of the steel are restricted, and a gap rate, which is an indicator of the adhesiveness between inclusions and the surrounding matrix, is kept at or below a fixed value. The steel member is a steel member for machine parts with a surface hardness of at least 58 HRC. A test piece with an area of 40 mm2 to 400 mm2 is taken in parallel with a rolling surface from the rolling surface that revolves as a result of a rolling body comprising the steel member, which has an oxygen content in steel of 8 ppm or less and a sulfur content of 0.008 mass% or less, being subjected to a load, and all of the inclusions (1) having an effective length (4) of at least 10 μm and an effective width (6) of at least 2 μm are absorbed. The gap rate of each inclusion (1), said gap rate being defined as the area of the gap (2) part divided by (the area of the gap (2) part plus the area of the inclusion (1)) is calculated, and the average gap rate of all of the observed inclusions (1) is not more than 8%, and of all of the observed inclusions (1), at least 30% of inclusions (1) with gap rates of less than 1.0% have gap rates of zero.
Provided is steel for bearings, crank pins and the like, having an excellent rolling fatigue life, and having an excellent rolling fatigue life when used for devices and machinery parts with a surface hardness of at least 58 HRC. This steel is for machinery parts with a surface hardness of at least 58 HRC. The forging ratio of the steel material with respect to an ingot of the base material is at least 22.0. The oxygen content in the steel is 6 ppm or less in terms of mass ratio, and the sulfur content is 0.003 mass% or less. The diameters of inclusions detected per 1,000 mm3 of steel material are 20 μm or more according to ultrasonic flaw detection at a probe frequency of over 25 MHz to 125 MHz, and at said inclusion diameter of 20 μm or more, the distance of closest approach between non-metallic inclusions is less than 40 μm. The number of non-metallic inclusion pairs is 2.0 or less, and the maximum diameter of non-metallic inclusions detected in a total steel material volume of at least 3,000 mm3 is 100 μm or less according to ultrasonic flaw detection at a probe frequency of over 25 MHz to 125 MHz.
Provided is steel used in machinery parts, said steel having an excellent rolling fatigue life due to the fact that the oxygen content, sulfur content and aluminum content in the steel is regulated; and due to fact that the mass% ratio of (MgO)/(Al2O3) in an average composition of an MgO-Al2O3 oxide, and the number ratio accounted for by the MgO-Al2O3 oxide among all oxides are regulated. The steel is used for machinery parts with a surface hardness of at least 58 HRC. The oxygen content in the steel is 8 ppm or less in terms of mass ratio; the sulfur content is 0.008 mass% or less; and the aluminum content is 0.011 to 0.030 mass%. The mass% ratio of (MgO)/(Al2O3) in an average composition of an MgO-Al2O3 oxide present in steel is restricted to a range of 0.25 to 1.50; and the number ratio accounted for by the MgO-Al2O3 oxide among all oxide inclusions is set at 70% or above.
CrTi-BASED ALLOY FOR ADHESION FILM LAYER FOR USE IN MAGNETIC RECORDING MEDIUM, TARGET MATERIAL FOR SPUTTERING, AND PERPENDICULAR MAGNETIC RECORDING MEDIUM OBTAINED USING SAME
Provided are a CrTi-based alloy for adhesion film layers for use in magnetic recording media, a target material for sputtering, and a perpendicular magnetic recording medium obtained using the alloy. This alloy is a CrTi-based alloy in which the empirical formula in terms of atomic ratio is represented by (Cr,Mo,W)X(Ti,Ta,Zr)100-X, where 40≤X≤70, in which the Cr element has been replaced with one or the two elements selected from between Mo and W in such an amount that the proportion of Mo+W is in the range of 10 at% to X/2 at%, and in which the Ti element has been replaced with one or the two elements selected from between Ta and Zr in such an amount that (Ta+Zr)≤20 at% (including 0 at%).
Disclosed is an Si-based-alloy anode material for a lithium ion secondary battery. The Si-based-alloy anode material comprises an alloy phase configured from an Si primary phase comprising Si, and a compound phase comprising at least two elements. The at least two elements include: at least one first added element (A) selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb, and Mg; and at least one low-melting-point second added element (B) selected from the group consisting of S, Se, Te, Sn, In, Ga, Pb, Bi, Zn, Al, and Ag. The compound phase: (i) contains a first compound phase comprising Si and a first added element (A), a second compound phase comprising a first added element (A) and a second added element (B), and a single phase of a second added element (B) and/or a third compound phase comprising at least two second added elements (B); or (ii) a compound phase comprising Si and a first added element (A), and a single phase of a second added element (B) and/or a compound phase comprising at least two second added elements (B). The average minor axis width of the Si primary phase is no greater than 4 μm. By means of the anode material, it is possible to provide a secondary battery having favorable charging/discharging capacity and cycle life.
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
98.
ALLOY FOR SOFT MAGNETIC FILM LAYERS, WHICH HAS LOW SATURATION MAGNETIC FLUX DENSITY AND IS TO BE USED IN MAGNETIC RECORDING MEDIUM, AND SPUTTERING TARGET MATERIAL
Provided are: an alloy for soft magnetic film layers, which has low saturation magnetic flux density and is to be used in a magnetic recording medium; and a sputtering target material. This alloy contains one or more elements selected from the group consisting of Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Ni, Cu, Al, B, C, Si, P, Zn, Ga, Ge and Sn, with the balance made up of Co and Fe, while satisfying, in at%, the following formulae (1)-(3). (1) 0.50 ≤ Fe%/(Fe% + Co%) ≤ 0.90 (2) 5 ≤ TAM ≤ 25 (3) 15 ≤ TAM + TNM ≤ 25 In this connection, the above-mentioned TAM and TNM are respectively defined as TAM = Y% + Ti% + Zr% + Hf% + V% + Nb% + Ta% + B%/2 and TNM = Cr% + Mo% + W% + Mn% + Ni%/3 + Cu%/3 + Al% + C% + Si% + P% + Zn% + Ga% + Ge% + Sn%.
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
C22C 45/02 - Amorphous alloys with iron as the major constituent
Disclosed is a method for manufacturing ring-shaped mechanical parts having a rolling part with superior rolling fatigue life on an inside diameter surface. This method for manufacturing is carried out by forming the rolling part on which a rolling component rolls on the inside diameter surface of a ring-shaped material by a forging process that imparts hydrostatic pressure stress for contraction to the inside diameter surface of the ring-shaped material such that the rolling part is formed.
An iron-containing titanium alloy, which exhibits significant strength and hardness, and which contains, without segregation, iron having a composition unattainable using prior art, is inexpensively provided. An α+β or β titanium alloy is characterized by being produced by subjecting a titanium alloy powder containing 3-15 mass% iron powder to hot extrusion molding or the like. Also, a method for producing an α+β or β titanium alloy is characterized in that an iron powder in the amount of 3-15 mass% and a titanium alloy powder constituting the remainder are mixed, and subjected to hot extrusion molding.
C22F 1/18 - High-melting or refractory metals or alloys based thereon
B22F 3/20 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor by extruding
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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