Pre-service oxidation of gas turbine disks and seals
US6532657B1 · kind B1 · utility
15Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49336
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas turbine component, such as a turbine disk or a rotating seal, is fabricated by furnishing a substrate shaped as a gas turbine component made of a nickel-base superalloy, and oxidizing the substrate to produce an oxidized substrate having thereon a layer comprising an oxide and having a thickness of at least about 500 Angstroms. The step of oxidizing is performed prior to entry of the component into service and in an atmosphere that does not contain combustion gas. The oxidized gas turbine component is thereafter placed into service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.