Nickel-base superalloys and articles formed therefrom
US6531002B1 · kind B1 · utility
10Cited by
8References
58Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/058
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An article, such as a turbine engine component, formed from a nickel-base superalloy, the nickel-base superalloy containing a &ggr;″ tetragonal phase and comprising aluminum, titanium, tantalum, niobium, chromium, molybdenum, and the balance nickel, wherein the article has a time dependent crack propagation resistance of at least about 20 hours to failure at about 1100° F. in the presence of steam. The invention also includes a nickel-base superalloy for forming such and article and methods of forming the article and making the nickel-base superalloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.