Method of applying environmental and bond coatings to turbine flowpath parts
US6887529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2003 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for coating an article such as a turbine engine shroud with an environmental or bond coating, such as a MCrAlY composition, to produce a surface finish suitable for machining to predetermined dimensions and specifications. The method of applying an environmental or bond coating uses a thermal spray process such as hyper velocity oxygen fuel (“HVOF”) to produce a thick and reasonably uniform coating which can be machined to desired dimensions while still providing key quality characteristics required to protect the coated parts in a high temperature, oxidative and corrosive atmosphere and permitting application of long life thermal barrier topcoats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.