The present invention relates to a 3D-printed product made of at least one alloy wherein the alloy is based on iron, cobalt or nickel and wherein the 3D-printed product comprises a portion made of the alloy and wherein the portion comprises a first sub-portion and a second sub-portion, wherein the first sub-portion and the second sub-portion share a common border, wherein each of the first and second sub-portions comprises a metal matrix and grains of carbides embedded in the metal matrix wherein the first sub-portion comprises grains of carbides having an average carbide cross-sectional area which differs by a factor of at least 2 from an average carbide cross-sectional area of the grains of carbides of the second sub-portion.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B22F 10/38 - Commande ou régulation des opérations pour obtenir des caractéristiques spécifiques du produit, p.ex. le lissage de la surface, la densité, la porosité ou des structures creuses
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
C22C 19/00 - Alliages à base de nickel ou de cobalt, seuls ou ensemble
C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
C22C 38/12 - Alliages ferreux, p.ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
The present invention relates to a 3D printed product of an iron based alloy having a narrow distribution of carbide areas and to a method of preparing the product where the HIP and hardening is combined.
The present invention relates to a 3D-printed iron based alloy product comprising carbon, tungsten, vanadium, cobalt, chromium and molybdenum with very high hardness and very good high temperature properties thermal properties as well as a method of preparing the 3D-printed product and a powder alloy.
The present invention relates to a 3D-printedcobalt-basedalloy product comprising carbon, tungsten and chromium with very good mechanical and thermal properties as well as a method of preparing the 3D-printedproductand a powder alloy. The alloy has a high carbon content leading to high carbide content but small and evenly distributed carbides. A method facilitating 3D printing of high carbide content alloys such as the present alloy is also disclosed.
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
C22C 1/10 - Alliages contenant des composants non métalliques
C22C 19/07 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de cobalt
C22C 32/00 - Alliages non ferreux contenant entre 5 et 50% en poids d'oxydes, de carbures, de borures, de nitrures, de siliciures ou d'autres composés métalliques, p.ex. oxynitrures, sulfures, qu'ils soient soient ajoutés comme tels ou formés in situ