High strength thermally stable nickel-base alloys
US11814704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2022 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Jan 13, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy includes a composition, in weight percent, of aluminum from about 1.3% to about 1.8%, cobalt from about 1.5% to about 4.0%, chromium from about 18.0% to about 22.0%, iron from about 4.0% to about 10.0%, molybdenum from about 1.0% to about 3.0%, niobium from about 1.0% to about 2.5%, titanium from about 1.3% to about 1.8%, tungsten from about 0.8% to about 1.2%, carbon from about 0.01% to about 0.08%, and balance nickel and incidental impurities. The alloy has a stress rupture life at 700° C. and 393.7 MPa (57.1 ksi) of at least 300 hours and a room temperature percent elongation of at least 15% after aging at 700° C. for 1,000 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.