Method of producing columnar crystal superalloy material with controlled orientation and product
US4518442A · kind A · utility
16Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1981 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Nov 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/52
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.