Nickel-base heat-resistant alloys
US5431750A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 19, 1992 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jun 19, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/056
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The improved nickel-base heat-resistant alloy consists of 13.1-15.0% Cr (all percentages that follows are by weight), 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr and 1-100 ppm of Mg and/or Ca, in the optional presence of 0-1.5% Hf and/or 0-0.5% of at least one element of Pt, Rh and Re, with the remainder being Ni and incidental impurities. The alloy has high strength and high resistance to oxidation and corrosion at elevated temperatures and, hence, is suitable for use as a constituent material for machine parts that are to be exposed to elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.