US 12,280,425 B2
Additive manufacturing article and method for producing additive manufacturing article
Yuzo Daigo, Tokyo (JP)
Assigned to Proterial, Ltd., Tokyo (JP)
Appl. No. 17/434,421
Filed by Proterial, Ltd., Tokyo (JP)
PCT Filed Mar. 2, 2020, PCT No. PCT/JP2020/008599
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/179724, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-038723 (JP), filed on Mar. 4, 2019.
Prior Publication US 2022/0143701 A1, May 12, 2022
Int. Cl. B22F 10/28 (2021.01); B22F 10/60 (2021.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B33Y 80/00 (2015.01); C22C 19/05 (2006.01); H01L 21/02 (2006.01)
CPC B22F 10/28 (2021.01) [B22F 10/60 (2021.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 80/00 (2014.12); C22C 19/05 (2013.01); B22F 2301/15 (2013.01); B22F 2302/25 (2013.01); H01L 21/02 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An additive manufacturing article comprising:
a Ni-based alloy that contains Cr and Mo, while containing Ni in a largest amount in terms of a mass ratio,
wherein an oxide film comprising Cr and Ni is formed in a part or an entirety of a surface,
containing in the Ni-based alloy, Cr is in a range of 14.5% mass % to 24.5 mass % and Mo is a range of 12.0 mass % to 23.0% mass %,
the oxide film has a surface layer part and an inner part, wherein in a region of the surface layer part, an O content is higher than the O content in the inner part, and a Cr content is higher than an Ni content, and
the oxide film has a region in the inner part where the Ni content is higher than the Cr content.