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US 2023/0144481 A1Published application
Metal powder
AssigneeDaido Steel Co., Ltd.
InventorsAsako KAMIMOTO, Kenji SUGIYAMA, Takashi YOSHIMOTO, Koichiro INOUE
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Abstract
The present invention relates to a metal powder containing: 0.001 mass %≤C≤0.45 mass %, 0.01 mass %≤Si≤3.50 mass %, Mn≤2.0 mass %, 7.5 mass %≤Cr≤21.0 mass %, 1.5 mass %≤Ni≤7.0 mass %, Mo≤1.3 mass %, 0.05 mass %≤V≤2.0 mass %, Al≤0.015 mass %, and N≤0.20 mass %, with the balance being Fe and unavoidable impurities, satisfying 0.05 mass %≤C+N≤0.58 mass %, and satisfying: 10<15C+Mn+0.5Cr+Ni<20 and Creq/Nieq<5.6, where Creq=Cr+Mo+1.5Si+0.5Nb, and Nieq=Ni+30C+30N+0.5Mn.
Claims17
A metal powder,
- comprising:
- 0.001 mass %≤C≤0.45 mass %,
- 0.01 mass %≤Si≤3.50 mass %,
- Mn≤2.0 mass %,
- 7.5 mass %≤Cr≤21.0 mass %,
- 1.5 mass %≤Ni≤7.0 mass %,
- Mo≤1.3 mass %,
- 0.05 mass %≤V≤2.0 mass %,
- Al≤0,015 mass %, and
- N≤0.20 mass %,
- with the balance being Fe and unavoidable impurities, satisfying:
- 0.05 mass %≤C+N≤0.58 mass %, and
- satisfying the following expression (1) and expression (2):
- 10<15C+Mn+0.5Cr+Ni<20 (1), and
- Creq/Nieq<5.6 (2)
- where
- Creq=Cr+Mo+1,5Si+0.5Nb, and
- Nieq=Ni+30C+30N+0.5Mn.
15 more elements
Dependencies are inferred from the claim text.