Heat treatment of a nickel base alloy and components thereof
US11466353B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/004
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Heat treatment of an Alloy 282 which has been subjected to an initial solution annealing followed by cooling can be heat treated by heating the Alloy 282 to a temperature between 954° C. and 1010° C. until the gamma prime (γ′) phase is sufficiently dissolved, and cooling the Alloy 282 to a temperature a sufficiently low temperature, and at a sufficiently high cooling rate, to suppress gamma prime precipitation. A component such as a turbine exhaust case and a gas turbine engine made of said alloy can be heat treated in the above manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.