	US 11,992,877 B2
	Powder metal material for additive manufacturing and method for producing non-magnetic steel
Masaki Shinkawa, Saitama (JP); and Kazuo Kikawa, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 30, 2023, as Appl. No. 18/128,657.
Claims priority of application No. 2022-061339 (JP), filed on Mar. 31, 2022; and application No. 2023-045625 (JP), filed on Mar. 22, 2023.
Prior Publication US 2023/0311203 A1, Oct. 5, 2023
Int. Cl. B22F 1/12 (2022.01); B22F 1/05 (2022.01); B22F 9/08 (2006.01); B22F 10/28 (2021.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); C22C 33/02 (2006.01); C22C 38/04 (2006.01)

CPC B22F 1/12 (2022.01) [B22F 1/05 (2022.01); B22F 9/082 (2013.01); B22F 10/28 (2021.01); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); C22C 33/0228 (2013.01); C22C 38/04 (2013.01); B22F 2301/35 (2013.01); B22F 2302/20 (2013.01); B22F 2304/10 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01)]

16 Claims

1. A powder metal material for additive manufacturing comprising:

(A) a non-magnetic steel powder which is free of nitrogen; and

(B) at least one powder selected from a chromium nitride powder and a ferrochromium nitride powder, wherein

a particle size of the component (B) is 10.0 μm≤D50≤25.0 μm in terms of volume average particle size, and

a content of the component (B) is 0.1 mass % to 3.5 mass % with respect to a total amount of the powder metal material.