Warm work processing for iron base alloy
US5223053A · kind A · utility
1Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D6/004
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for strengthening heavy, thick-section forgings of precipitation age hardenable iron base superalloys. The process includes initial recrystallization to achieve a uniform grain size, intermediate temperature warm working at controlled strain rates and for limited amounts of deformation, and precipitation heat treating. The controlled warm working conditions avoid further recrystallization, thus preserving the strain hardening which improves the mechanical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.