公开(公告)号：US20230030877A1

公开(公告)日：2023-02-02

申请号：US17785611

申请日：2019-12-20

Applicant: ArcelorMittal

Inventor： Valérie DAESCHLER ,  Frédéric BONNET ,  Rosalia REMENTERIA FERNANDEZ ,  Diego Alejandro SEGOVIA PEREZ

IPC: B22F1/065 ,  B22F1/052 ,  C22C1/03 ,  C22C38/58 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00

Abstract: A metal powder for additive manufacturing having a composition including the following elements, expressed in content by weight: 0.01%≤C≤0.2%, 2.5%≤Ti≤10%, (0.45×Ti)−1.35%≤B≤(0.45×Ti)+0.70%, S≤0.03%, P≤0.04%, N≤0.05%, O≤0.05% and optionally containing: Si≤1.5%, Mn≤3%, Al≤1.5%, Ni≤1%, Mo≤1%, Cr≤3%, Cu≤1%, Nb≤0.1%, V≤0.5% and including eutectic precipitates of TiB2 and optionally of Fe2B, the balance being Fe and unavoidable impurities resulting from the elaboration, the metal powder having a mean roundness of at least 0.70. The invention also relates to its manufacturing method by argon atomization.