Property recovering method
US7632362B2 · kind B2 · utility
3Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is disclosed for recovering the properties of single crystal and directionally solidified Nickel based superalloys and articles made thereof, after use in a high temperature environment. The method comprises the steps of a stress relief treatment, a γ′ rejuvenation heat treatment at a temperature below the γ′-solvus temperature (Tsolvus, γ′) of the superalloy, a precipitation heat treatment and an aging heat treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.