Back to results
US 2013/0337286 A1Published application
Alloy, protective coating, and component
OwnerFriedhelm Schmitz, Werner Stamminventors
Life of this patent
Estimating the term…
Abstract
Known protective coatings having a high Cr content, as well as silicon, have brittle phases that become additionally brittle under the influence of carbon during use. A protective coating is provided. The protective coating includes the composition of 24% to 26% cobalt, 10% to 12% aluminum, 0.2% to 0.5% yttrium, 12% to 14% chromium, and the remainder nickel.
Claims12
1-7. (canceled)
An alloy, comprising (data in wt %):
- 24%-26% cobalt;
- 12%-14% chromium;
- 10%-12% aluminum;
- 0.2%-0.5% of at least one element from the group consisting of scandium and the rare earth elements;
- and
- remainder nickel.
3 more elements
A component, comprising:
- a substrate which is nickel-based or cobalt-based;
- a protective layer comprising an alloy in order to protect against corrosion and oxidation at high temperatures, the alloy, comprising:
- 24%-26% cobalt,
- 12%-14% chromium,
- 10%-12% aluminum,
- 0.2%-0.5% of at least one element from the group consisting of scandium and the rare earth elements, and
- remainder nickel;
- and
- a ceramic thermal barrier layer applied onto the protective layer,
- wherein the component is a component of a gas turbine, and
- wherein the protective layer is a single, metallic protective layer.
8 more elements
Dependencies are inferred from the claim text.