Metal powder for powder metallurgy, compound, granulated powder, and sintered body
AssigneeSeiko Epson Corporation
InventorHidefumi NAKAMURA
Life of this patent
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Abstract
A metal powder for powder metallurgy contains Fe as a principal component, Ni in a proportion of 5 mass % or more and 20 mass % or less, Si in a proportion of 0.3 mass % or more and 5 mass % or less, and C in a proportion of 0.005 mass % or more and 0.3 mass % or less, and when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number in the periodic table than that of the first element is defined as a second element.
Claims19
A metal powder for powder metallurgy, comprising:
- Fe as a principal component;
- Ni in a proportion of 5 to 20 mass %;
- Si in a proportion of 0.3 to 5 mass %;
- and
- C in a proportion of 0.005 to 0.3 mass %,
- wherein
- a first element is contained in a proportion of 0.01 to 0.7 mass %, and
- a second element is contained in a proportion of 0.01 to 0.7 mass %,
- wherein
- the first element is selected from the group consisting of Ti, V, Y, Zr, Nb, and Hf, and
- the second element is selected from the group consisting of Ti, V, Zr, Nb, Hf, and Ta, and
- (i) has a higher group number in the periodic table than the first element or
- (ii) has the same group number and a higher period number in the periodic table than the first element.
A sintered body, comprising:
- Fe as a principal component;
- Ni in a proportion of 5 to 20 mass %;
- Si in a proportion of 0.3 to 5 mass %;
- and
- C in a proportion of 0.005 to 0.3 mass %,
- wherein
- a first element is contained in a proportion of 0.01 to 0.7 mass %, and
- a second element is contained in a proportion of 0.01 to 0.7 mass %,
- wherein
- the first element is selected from the group consisting of Ti, V, Y, Zr, Nb, and Hf, and
- the second element is selected from the group consisting of Ti, V, Zr, Nb, Hf, and Ta, and
- (i) has a higher group number in the periodic table than the first element or
- (ii) has the same group number and a higher period number in the periodic table than the first element.
Dependencies are inferred from the claim text.