Alloy, protective layer and component

文件类型：PDF文档
文件大小：323K
Alloy comprises (in wt.%) cobalt (18-22 (preferably 19-21)), chromium (22-26 (preferably 23-25)), aluminum (6-8 (preferably 6.5-7.5)), at least one element comprising scandium or rare earth elements, preferably yttrium (0.5-0.7), and nickel (balance). Independent claims are included for : (1) a protective layer (7) for protecting a component against corrosion and/or oxidation, preferably at high temperatures, comprising the composition of the alloy, and is present as a single layer; and (2) the component, preferably a component of a gas turbine, preferably in which a substrate (4) of the component is nickel-based or cobalt-based, comprising the protective layer, preferably a metallic protective layer, in which a ceramic thermal barrier layer (10) is applied on the protective layer.