Hard particle, sliding member, and production method of sintered alloy
US11634799B2 · kind B2 · utility
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Key dates
| Filing date | Oct 5, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Oct 5, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a hard particle in which Cr and W, that are quickly diffused in Mo, are present at the same time as Ni and Mn. Specifically, the hard particle contains Cr: 5% by mass to 20% by mass, W: 2% by mass to 19% by mass, Mo: 25% by mass to 40% by mass, Ni: 10% by mass to 22% by mass, Mn: 10% by mass or less, C: 2.0% by mass or less, Si: 2.0% by mass or less, and a remainder: Fe and unavoidable impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.