Nickel-base superalloy having an optimized platinum-aluminide coating
US6066405A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A nickel-base superalloy substrate includes a surface region having an integrated aluminum content of from about 18 to about 24 percent by weight and an integrated platinum content of from about 18 to about 45 percent by weight, with the balance components of the substrate. The substrate is preferably a single-crystal advanced superalloy selected for use at high temperatures. The substrate may optionally have a ceramic layer deposited over the platinum-aluminide region, to produce a thermal barrier coating system. The platinum-aluminide region is produced by diffusing platinum into the substrate surface, and thereafter diffusing aluminum into the substrate surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.