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US 2026/0091428 A1Published application
Iron-Based Alloy Powder and Method for Producing Molded Body
AssigneeSanyo Special Steel Co., Ltd.
InventorsToru Hagiya, Toshiyuki Sawada, Yuka Tsujii
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Abstract
An Fe-based alloy powder that can suppress cracks of a shaped article is provided. The Fe-based alloy powder contains, in terms of mass %: 0.30≤C≤0.50; 0<Si≤0.40; 0<Mn≤0.40; 0.85≤Cr≤1.75; 0<Ni≤0.40; 0.70≤Mo≤1.20; 0<V≤0.60; 0<Al≤0.10; and 0≤W≤0.40%, the balance consisting of Fe and unavoidable impurities. The Fe-based alloy powder comprises a Ceq, which is a carbon equivalent determined by converting an influence of elements other than carbon contained in the Fe-based alloy powder into a carbon amount, of 0.95% or less.
Claims9
An Fe-based alloy powder comprising, in terms of mass %:
- 0.3
- ≤
- C
- ≤
- 0.5
- ,
- 0
- <
- Si
- ≤
- 0.4
- ,
- 0
- <
- Mn
- ≤
- 0.4
- ,
- 0.85
- ≤
- Cr
- ≤
- 1.75
- ,
- 0
- <
- Ni
- ≤
- 0.4
- ,
- 0.7
- ≤
- Mo
- ≤
- 1.2
- ,
- 0
- <
- V
- ≤
- 0.6
- ,
- 0
- <
- Al
- ≤
- 0.1
- ,
- 0
- ≤
- W
- ≤
- 0.4
- %
- ,
- and
- the balance consisting of Fe and unavoidable impurities,
- wherein Ceq, which is a carbon equivalent determined by converting an influence of elements other than carbon comprised in the Fe-based alloy powder into a carbon amount, is 0.95 mass % or less, wherein the Ceq is expressed by the following expression (1a):
- Ceq
- =
- C
- +
- Si
- 24
- +
- Mn
- 6
- +
- Cr
- 5
- +
- Ni
- 40
- +
- (
- Mo
- +
- W
- /
- 2
- )
- 4
- +
- V
- 14
- (
- 1
-
- a
- )
- wherein, in expression (1a), C, Si, Mn, Cr, Ni, Mo, W, and V are contents in mass % of respective elements in the Fe-based alloy powder.
88 more elements
Dependencies are inferred from the claim text.