Superalloy properties through stress modified gamma prime morphology
US4392894A · kind A · utility
14Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1980 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Sep 24, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/52
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high strength nickel base superalloy having a novel microstructure is described. The article consists of a gamma matrix containing a oriented gamma prime second phase having a plate or rod form. This noncuboidal gamma prime phase is produced by aging solution treated material under an applied stress. When this process is applied to a certain class of superalloys which are rich in refractory elements, the resultant structure provides exceptional resistance to creep at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.