Valve seat made of secondary hardening-type high temperature wear-resistant sintered alloy
US5466276A · kind A · utility
18Cited by
24References
7Claims
0Family size
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Key dates
| Filing date | Jul 7, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0228
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A secondary hardening type high temperature wear-resistant sintered alloy body comprising 0.4 to 15 wt. % of at least one species of metal carbide forming element which is selected from the group consisting of W, Mo, V, Ti, Nb, Ta and B; 5 to 35 wt. % of at least one species of austenite forming element which is selected from the group consisting of Ni, Co, Cu, and Cr; 0.2 to 1.2 wt. % of C; and 0.04 to 0.2 wt. % of Al consisting essentially the remainder of Fe, wherein the alloy body contains an austenite phase which is capable of martensitic transformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.