Method for producing a metal alloy powder such as MCRALY and coatings obtained with same
US6695960B1 · kind B1 · utility
9Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Jun 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention concerns a method comprising a step which consists in producing, on a precursor alloy powder containing at least the elements Cr, Al and Y, using a chemical or electrolytic deposition bath, a deposition containing at least a modifying element such as platinum, palladium, ruthenium or rhenium. The modifying element enhances the capacity of the coating to form from phase &bgr;, by exposure to oxygen at high temperature, an adhesive alumina surface barrier. The invention is useful for protecting against corrosion and oxidation at high temperatures aviation turbine blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.