High-temperature-resistant cobalt-base superalloy
US8764919B2 · kind B2 · utility
9Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Nov 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/07
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cobalt-base superalloy chemical composition is disclosed which includes, in % by weight: 25-28 W; 3-8 Al; 0.5-6 Ta; 0-3 Mo; 0.01-0.2 C; 0.01-0.1 Hf; 0.001 -0.05 B; 0.01-0.1 Si; and remainder Co and unavoidable impurities. This superalloy can be strengthened by γ′ dispersions and further dispersion mechanisms. Exemplary compositions can provide good oxidation properties and improved strength values at high temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.