| 简介 |
Alloy comprises (in wt.%) : cobalt (24-26 (preferably 25)), chromium (12-15 (preferably 13)), aluminum (10.5-11.5 (preferably 11)), at least one metal (0.1-0.7) comprising scandium and/or rare earth elements, preferably yttrium, optionally tantalum (0.1-3), optionally silicon (0.05-0.6) or nickel (43.2-53.4), preferably nickel (balance). Independent claims are included for : (1) a protective layer (7) for protecting a component (1) against corrosion and/or oxidation, preferably at high temperature, comprising the composition of the alloy; and (2) a building component, preferably a building component of a gas turbine, in which a substrate (4) of the building component is nickel-based or cobalt-based, which contains the protective layer to protect against corrosion and oxidation at high temperature, in which a ceramic thermal barrier coating (10) is applied on the protective layer. |
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