Shroud for gas turbines
US4615658A · kind A · utility
9Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Jul 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12931
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to an improvement on material of a shroud for gas turbines. The material comprises 0.25-0.7 wt % C, 20-35 wt % Cr, 20-40 wt % Ni and balance Fe, and has an austenitic structure. The amount of the .sigma.-phase in this invention is less than 5% and Nv value (Electron Vacancy Number) is less than 2.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.