Alloys having a nickel-iron-chromium base for structural hardening by thermal treatment
US3972752A · kind A · utility
11Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1974 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Aug 14, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/055
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of preparation of an alloy comprising the steps of preparing a nickel-iron-chromium based alloy, placing the alloy in solution at temperatures between 925.degree.C and 1060.degree.C, followed by a quick cooling, aging the alloy at a first level of temperature and exposure time to obtain a precipitation of .gamma.' phase prior to a precipitation of a .gamma." phase and reducing the temperature to a second level of at least 700.degree.C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.