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US 12,138,690 B2Granted
Sintered material and method of manufacturing sintered material
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
InventorsShigeki Egashira, Takayuki Tashiro, Tomoyuki Ishimine, Kosuke Tominaga
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Abstract
A sintered material includes a composition composed of iron-based alloy, and a texture containing 200 or more and 1350 or less of compound particles having a size of 0.3 μm or more per unit area of 100 μm×100 μm in a cross section, and a relative density is 93% or more.
Claims4
A sintered material, comprising:
- a composition composed of iron-based alloy;
- and
- a texture containing 200 or more and 1350 or less of compound particles having a size of 0.3 μm or more per unit area of 100 μm×100 μm in a cross section,
- wherein a relative density is 93% or more, and
- wherein raw material powder of the sintered material contains iron-based alloy particles,
- wherein the iron-based alloy consists of Ni, Fe, impurities, and optionally one or more elements selected from the group consisting of C, Mo, Mn, Cr, B, and Si, and the compound particles include an oxide, a sulfide, a carbide, or a nitride of the one or more elements, Ni Fe, and the impurities, and
- wherein the iron-based alloy particles have a nickel content of from 0.1% to 4.0% by mass, and the iron-based alloy particles have a carbon content of from 0.1% to 2.0% by mass.
4 more elements
Dependencies are inferred from the claim text.