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 shaped article which can satisfy both high heat conducting properties and hardness (quenching and tempering hardness, and hardness after retention at a high temperature and softening). The shaped article produced from an Fe-based alloy powder, the Fe-based alloy powder consisting of, in mass %: 0.2050.0; (3) PC<3.0.
Provided is a steel powder for a hot work tool, suitable for additive manufacturing. A stacked shaped article produced by the powder can satisfy both high heat conducting properties and hardness. An Fe-based alloy powder consisting of, in mass %, 0.4021.7 (1); K2>29.0 (2), and wherein the Fe-based alloy powder has an average particle size D50 of 200 μm or less.
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
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
B33Y 70/00 - Materials specially adapted for additive manufacturing
4.
NICKEL-BASED ALLOY POWDER FOR LAMINATION MOLDING AND LAMINATION MOLDED BODY
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
Provided is a sputtering target material having excellent crack resistance and a method of producing the same. Also provided is a sputtering target material and a method of producing the same. The sputtering target material is composed of an alloy consisting of B; one or more rare earth elements; and the balance consisting of Co and/or Fe and unavoidable impurities. The amount of B in the alloy is 15 at. % or more and 30 at. % or less. The one or more rare earth elements are selected from the group consisting of Pr, Sm, Gd, Tb, Dy, and Ho. The total amount of the one or more rare earth elements in the alloy is 0.1 at. % or more and 10 at. % or less.
C22C 30/00 - Alloys containing less than 50% by weight of each constituent
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
H01F 1/055 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
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
H01J 37/34 - Gas-filled discharge tubes operating with cathodic sputtering
Provided is a method of producing a target material with reduced particle generation during sputtering, which is a method of producing a sputtering target material whose material is an alloy M, including a sintering step of sintering a mixed powder obtained by mixing a first powder and a second powder. A material of the first powder is an alloy M1 in which the proportion of a B content is from 40 at. % to 60 at. %. A material of the second powder is an alloy M2 in which the proportion of a B content is from 20 at. % to 35 at. %. The proportion of a B content in the mixed powder is from 33 at. % to 50 at. %. A metallographic structure including a (CoFe)2B phase and a (CoFe)B phase is formed in the sintering step. A boundary length per unit area Y (1/μm), which is obtained by measuring a boundary length between the (CoFe)2B phase and the (CoFe)B phase using a scanning electron microscope, and a proportion X (at. %) of a B content of the alloy M satisfy the expression
Provided is a method of producing a target material with reduced particle generation during sputtering, which is a method of producing a sputtering target material whose material is an alloy M, including a sintering step of sintering a mixed powder obtained by mixing a first powder and a second powder. A material of the first powder is an alloy M1 in which the proportion of a B content is from 40 at. % to 60 at. %. A material of the second powder is an alloy M2 in which the proportion of a B content is from 20 at. % to 35 at. %. The proportion of a B content in the mixed powder is from 33 at. % to 50 at. %. A metallographic structure including a (CoFe)2B phase and a (CoFe)B phase is formed in the sintering step. A boundary length per unit area Y (1/μm), which is obtained by measuring a boundary length between the (CoFe)2B phase and the (CoFe)B phase using a scanning electron microscope, and a proportion X (at. %) of a B content of the alloy M satisfy the expression
Y<−0.0015×(X−42.5)2+0.15.
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
Provided is a Cu-based alloy powder that is suitable for a process involving rapid melting and rapid solidification and that can provide a shaped object superior in characteristics. The powder is composed of a Cu-based alloy, which contains an element M being one or more elements selected from Cr, Fe, Ni, Zr, and Nb: 0.1% by mass or more and 10.0% by mass or less, Si: more than 0% by mass and 0.20% by mass or less, P: more than 0% by mass and 0.10% by mass or less, and S: more than 0% by mass and 0.10% by mass or less, the balance being Cu and inevitable impurities. This powder has a ratio (D50/TD) of the average particle diameter D50 (μm) thereof to the tap density TD (Mg/m3) is 0.2×10−5·m4/Mg or more and 20×10−5·m4/Mg or less, and has a sphericity of 0.80 or more and 0.95 or less.
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)
Provided is an alloy powder capable of obtaining a magnetic member therefrom in which the frequency FR is extremely high. The powder for the magnetic member is composed of a plurality of flaky particles. These flaky particles are composed of an Fe-based alloy including: 6.5% by mass or more and 32.0% by mass or less of Ni; 6.0% by mass or more and 14.0% by mass or less of Al; 0% by mass or more and 17.0% by mass or less of Co; and 0% by mass or more and 7.0% by mass or less of Cu; the balance being Fe and unavoidable impurities. The average thickness Tav of this powder is 3.0 μm or less. The saturation magnetization Ms of this powder is 0.9 T or more. The coercive force iHc of this powder is 16 kA/m or more. This Fe-based alloy has a structure resulting from spinodal decomposition.
A problem to be solved by the present invention is to provide an alloy that is suitable for a sputtering target material and easy to be produced by an atomization method, and, in order to solve the problem. The present invention provides an alloy containing: at least one selected from Co and Fe; B; C; and the balance being unavoidable impurities. A concentration of C in the alloy is 50 ppm or more and 950 ppm or less, and where a composition of Co, Fe and B, excluding C and the unavoidable impurities, in the alloy is represented by the general formula: (CoX-Fe100-X)100-Y-BY, where X is 0 or more and 100 or less, and Y is 10 or more and 65 or less.
Provided is a powder which has a high saturation magnetic flux density and excellent flame retardancy. This powder is a flame retardant powder for a magnetic member, and includes a plurality of flaky particles. These particles are composed of an Fe—Si-based alloy containing 7% by mass or more and 12% by mass or less of Si. The content of Si in terms of percentage by mass, P(Si), in this alloy and the flame retardancy parameter PNF satisfy the following mathematical formulae (I) and (II): (−0.97×P(Si)+13.0)
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
A Cu-based alloy powder is provided that is suitable for a process involving rapid-melting and rapid-solidification and can produce a shaped article having superior properties. The powder is made of a Cu-based alloy. The Cu-based alloy includes 0.1 to 5.0 mass % of at least one element M selected from V, Fe, Zr, Nb, Hf, and Ta. The balance in the alloy is Cu and inevitable impurities. The powder has a ratio D50/TD of a mean particle diameter D50 (μm) to a tap density TD (Mg/m3) in a range of 0.2×10−5·m4/Mg to 20×10−5·m4/Mg.
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.
Provided is an Fe-based metal powder that is suitable for a process involving rapid melt-quenching and solidification, and that provides a shaped article having superior properties. The metal powder for shaping is made of an Fe-based alloy. The Fe-based alloy contains: Ni in an amount of 15.0% to 21.0% by mass; Co in an amount of 0% to 10.0% by mass; Mo in an amount of 0% to 7.0% by mass; Ti in an amount of 0.1% to 6.0% by mass; Al in an amount of 0.1% to 3.0% by mass; and the balance composed of Fe and incidental impurities.
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.
06 - Common metals and ores; objects made of metal
Goods & Services
Metals in foil or powder form for 3d printers; common metals
in powder form; iron and steel; alloys of common metal;
castings, foils, powder, and rolled, drawn or extruded
semi-finished articles of nickel or its alloys; castings,
foils, powder, and rolled, drawn or extruded semi-finished
articles of cobalt or its alloys; castings, foils, powder,
and rolled, drawn or extruded semi-finished articles of
titanium or its alloys; castings, foils, powder, and rolled,
drawn or extruded semi-finished articles of copper or its
alloys.
37.
METHOD FOR SPHEROIDIZING ANNEALING CASE-HARDENING STEEL
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).
06 - Common metals and ores; objects made of metal
Goods & Services
Metals in foil or powder form for 3d printers; common metals in powder form; iron and steel; alloys of common metal; castings, foils, powder, and rolled, drawn or extruded semi-finished articles of nickel or its alloys; castings, foils, powder, and rolled, drawn or extruded semi-finished articles of cobalt or its alloys; castings, foils, powder, and rolled, drawn or extruded semi-finished articles of titanium or its alloys; castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
C22C 38/30 - Ferrous alloys, e.g. steel alloys containing chromium with cobalt
B33Y 70/00 - Materials specially adapted for additive manufacturing
C22C 33/02 - Making ferrous alloys by powder metallurgy
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
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
A method of making a sputtering target in which an atomized powder including, in at. %, 10 to 50% of B, 0 to 20% in total of one or more elements selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Ru, Rh, Ir, Ni, Pd, Pt, Cu, and Ag, and a balance of one or both of Co and Fe, and unavoidable impurities is provided. Fine particles are removed from the atomized powder to obtain a powder having a particle distribution where the cumulative volume of particles having a particle diameter of 5 μm or less is 10% or less, and the cumulative volume of particles having a particle diameter of 30 μm or less is 5-40%. The obtained powder is sintered to form a sputtering target comprising a sintered body. The sputtering target comprises hydrogen of 20 ppm or less.
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
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
C22C 33/02 - Making ferrous alloys by powder metallurgy
H01J 37/34 - Gas-filled discharge tubes operating with cathodic sputtering
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
43.
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
48.
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
49.
Ni—Cr based alloy brazing material containing trace amount of V
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.
In order to provide a soft magnetic flaky powder having high electrical resistance and high corrosion resistance, and a magnetic sheet including the same, the present invention provides a soft magnetic flaky powder, including a plurality of soft magnetic flaky particles. Each of the plurality of soft magnetic flaky particles contains an Fe-based alloy flaky particle and a coating layer formed on a surface of the Fe-based alloy flaky particle. The coating layer contains one or two or more components selected from chromic acid and a hydrate thereof, and a metal salt of an inorganic acid and a hydrate thereof. The inorganic acid is selected from sulfuric acid, nitric acid, chromic acid, phosphoric acid, hydrofluoric acid and acetic acid. The metal salt is selected from a Na salt, an Al salt, a Ti salt, a Cr salt, a Ni salt, a Ga salt and a Zr salt. The coating layer has a thickness of 10 nm or more.
H01F 1/147 - Alloys characterised by their composition
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
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
B22F 3/24 - After-treatment of workpieces or articles
B22F 1/16 - Metallic particles coated with a non-metal
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.
There is provided a magnetic powder for high frequency use including, in percent by mass, 0.2 to 5.0% C and at least one selected from Group IV to VI elements, Mn, and Ni in a total of 0.1 to 30%, the balance being Fe or/and Co, inclusive 0% for Co), and incidental impurities, wherein the saturation magnetization exceeds 1.0 T and satisfies Expression (1): Co%/(Co%+Fe%)≤0.50. According to the magnetic powder, there is provided a metal magnetic powder having a saturation magnetization exceeding 1.0 T and also having a high FR of 200 MHz or more and a magnetic resin composition including the metal magnetic powder.
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.
A flaky powder for high frequency application is provided, wherein the flaky powder contains 1.5 to 3.0 mass % C, 10 to 20 mass % Cr, 0.03 to 0.30 mass % N, and the balance being Fe and incidental impurities, and 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, a saturation magnetization of more than 1.0 T, and a frequency (FR) of 200 MHz or more at which tan δ reaches 0.1. Based on the flaky powder, a novel magnetic flaky metal powder having a saturation magnetization exceeding 1.0 T and exhibiting a high FR of 200 MHz or more, and magnetic sheets including the magnetic flaky metal powder are provided.
H01F 1/16 - 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 sheets
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
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 33/02 - Making ferrous alloys by powder metallurgy
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
A Ni—Cr—Fe-based alloy brazing filler material to which Cu is added, and which has a low melting temperature, and is inexpensive and excellent in corrosion resistance and in strength, for use in manufacture of stainless-steel heat exchangers or the like, specifically, a Ni—Cr—Fe-based alloy brazing filler material, including, in mass %, Cr: 15 to 30%; Fe: 15 to 30%; Cu: 2.1 to 7.5%; P: 3 to 12%; and Si: 0 to 8%; and the balance being Ni and unavoidable impurities, wherein the total content of Cr and Fe is 30 to 54%, and the total content of P and Si is 7 to 14%.
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
69.
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
H01J 37/34 - Gas-filled discharge tubes operating with cathodic 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
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 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
74.
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
79.
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 flaky soft magnetic powder including an Fe—Si—Al alloy having an oxygen content of 0.6 mass % or less, a manganese content of 0.1 mass % to 1.0 mass %, and the balance incidental impurities. The flaky soft magnetic powder has an average particle size of 43 to 60 μm and exhibits a coercive force Hc of 106 A/m or less as measured under application of a magnetic field in an in-plane direction of the flaky soft magnetic powder. The ratio of the tap density to the true density of the flaky soft magnetic powder is 0.17 or less. Also provided is a method of producing the flaky soft magnetic powder. The use of the flaky soft magnetic powder can produce a magnetic sheet having particularly high magnetic permeability.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
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
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 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 33/02 - Making ferrous alloys by powder metallurgy
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
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
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 1/147 - Alloys characterised by their composition
B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor by using pressure rollers
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
82.
NEGATIVE ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICES
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.
In order to provide a soft magnetic flaky powder that is used primarily in a member for an RFID and that has the high real part μ′ of a magnetic permeability and the low imaginary part μ″ of the magnetic permeability even when having an average particle diameter of 30 μm or more, and a method for producing the soft magnetic flaky powder, the present invention provides a soft magnetic flaky powder obtained by flattening-treatment of a soft magnetic powder, in which an average particle diameter is more than 30 μm, a coercive force measured by applying a magnetic field in the longitudinal direction of the flaky powder is in a range of 240 to 640 A/m, a saturation magnetization is 1.0 T or more, and an aspect ratio is 30 or more, and a method for producing the soft magnetic flaky 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 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 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
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
C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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
85.
Soft magnetic flattened powder and method for producing the same
H01F 1/147 - Alloys characterised by their composition
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
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
C21D 1/773 - Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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.
3) of the powder, and the flaky powder exhibits a coercive force of 239 to 479 A/m as measured under application of a magnetic field in an in-plane direction of the flaky powder. The flaky soft magnetic powder exhibits superior sheet formability and has high magnetic permeability.
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 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
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
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
H01F 1/16 - 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 sheets
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
88.
Manufacturing method of sintered alloy, compact for sintering, and sintered alloy
Mixed powder that contains first hard particles, second hard particles, graphite particles, and iron particles is used to manufacture a sintered alloy. The first hard particle is a Fe—Mo—Cr—Mn based alloy particle, the second hard particle is a Fe—Mo—Si based alloy particle. The mixed powder contains 5 to 50 mass % of the first hard particles, 1 to 8 mass % of the second hard particles, and 0.5 to 1.0 mass % of the graphite particles when total mass of the first hard particles, the second hard particles, the graphite particles, and the iron particles is set as 100 mass %.
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
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.
Provided is a valve seat insert made of an iron-base sintered alloy, in which a base matrix part that includes a base matrix phase and hard particles, has a base matrix part composition containing, in % by mass, 0.5%-2.0% of carbon and 10%-70% in total of one kind or two or more kinds selected from nickel, cobalt, chromium, molybdenum, vanadium, tungsten, manganese, silicon and sulfur, with the balance being iron and unavoidable impurities, and Co-base hard particles having a composition containing, 1.0% or less of C, 25%-50% of Mo, 5%-15% of Cr, Si as an impurity in a content adjusted to be 0.3% or less, with the balance being Co, and having a Vickers hardness of 500 to 1,500 HV, are dispersed as hard particles in the base matrix phase in an amount of 10%-60% by mass with respect to the total amount of the valve seat insert.
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
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 38/58 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
C22C 38/56 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
C22C 38/36 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
C22C 38/30 - Ferrous alloys, e.g. steel alloys containing chromium with cobalt
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
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 33/02 - Making ferrous alloys by powder metallurgy
There is provided a precipitation hardening stainless steel powder including, in percentage by mass: Si: ≤1.0%; Mn: ≤1.8%; Ni: 3.0 to 8.5%; Cr: 12.0 to 20.0%; Mo: 0.1 to 2.5%; Cu: 1.0 to 5.0% and/or Ti+Al: 1.0 to 5.0%; Nb+Ta≥5C or Nb≥5C; N≤350 ppm; and the balance being Fe and incidental impurities. A sintered compact fabricated from the steel powder has a martensite content of 90% or more. The precipitation hardening stainless steel powder provides a sintered compact that exhibits high strength after aging.
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).