Process for producing coarse, longitudinally oriented column crystals in an oxide-dispersion-strengthened nickel-base superalloy
US5067986A · kind A · utility
2Cited by
1References
6Claims
0Family size
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Key dates
| Filing date | May 15, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | May 15, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing coarse, longitudinally oriented column crystals with improved temperature change resistance and ductility in the transverse direction in a workpiece of any cross-section from an oxide-dispersion-strengthened nickel-base superalloy, which exists in fine-grained form, by annealing in the temperature range between 1000.degree. and 1200.degree. C., cooling to room temperature and isothermally annealing for coarse grain in the range between 1230.degree. C. and 1280.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.