Nickel-base alloys and methods of heat treating nickel-base alloys
US7491275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Jan 19, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/056
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of the present invention relate to nickel-base alloys, and in particular 718-type nickel-base alloys, having a desired microstructure that is predominantly strengthened by γ′-phase precipitates and comprises an amount of at least one grain boundary precipitate. Other embodiments of the present invention relate to methods of heat treating nickel-base alloys, and in particular 718-type nickel-base alloys, to develop a desired microstructure that can impart thermally stable mechanical properties. Articles of manufacture using the nickel-base alloys and methods of heat treating nickel-base alloys according to embodiments of the present invention are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.