Processing of gamma titanium-aluminide alloy using a heat treatment prior to deformation processing
US5609698A · kind A · utility
12Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/183
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An as-cast gamma titanium-aluminide alloy, typically having a composition of from about 45.0 to about 48.5 atomic percent aluminum, is pre-HIP heat treated at a temperature of from about 1900.degree. F. to about 2100.degree. F. for a time of from about 50 to about 5 hours. The gamma titanium-aluminide alloy is thereafter hot isostatically pressed at a temperature of about 2200.degree. F. Hot isostatic pressing is preferably followed by a further heat treatment at a temperature of about 1850.degree.-2200.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.