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US 2003/0207151 A1Published application
Rhenium-containing protective layer for protecting a component against corrosion and oxidation at high temperatures
OwnerWerner Stamminventor
Life of this patent
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Abstract
A protective layer has the composition 0.5 to 2% of rhenium, 15 to 21% of chromium, 9 to 11.5% of aluminum, 0.05 to 0.7% of yttrium and/or at least one equivalent metal from the group consisting of scandium and the rare earths, 0 to 1% of ruthenium, remainder cobalt and/or nickel and production-related impurities, and is scarcely subject to any embrittlement from Cr/Re precipitations.
Claims3
A protective layer for protecting a component against corrosion and oxidation at high temperatures, essentially consisting of:
- 0.5 to 2% wt of rhenium;
- 15 to 21% wt of chromium;
- 9 to 11.5% wt of aluminum;
- 0.05 to 0.7% wt of an element selected from the group consisting of yttrium, scandium and rare earths;
- 0 to 1% wt of ruthenium;
- a remainder selected from the group consisting of cobalt and nickel;
- and
- production-related impurities.
5 more elements
Dependencies are inferred from the claim text.