Laves free cast+hip nickel base superalloy
US4750944A · kind A · utility
17Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1985 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Dec 30, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A nickel base superalloy composition useful in the cast+HIP+heat treated condition is described. Articles having the invention composition have properties which are comparable to similarly processed IN718 articles. The invention alloys have an as-cast microstructure which is substantially free from Laves phase, even at slow solidification rates. As a result, the alloys are significantly more weldable than IN718. This desirable microstructure is achieved by modifications of the chromium, molybdenum, iron, and nickel contents compared to the typical IN718 composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.