| 主权项 |
1. A layer system (1)
at least comprising: a substrate (4), an at least two-layered metallic layer (7, 10) consisting of at least a first bottom layer (7) and a second top layer (10) on the bottom layer (7), wherein the bottom layer (7) comprises an MCrAlX alloy without tantalum (Ta) and without silicon (Si) and without iron (Fe), in particular contains at least the following elements, very particularly consists thereof: (amounts in % by weight): 24%-26% cobalt (Co), in particular 25%, 12%-14% chromium (Cr), in particular 13%, 10%-12% aluminum (Al), in particular 11%, 0.2%-0.5%, very particularly 0.3%, nickel, in particular remainder nickel, wherein the second layer (10) comprises an MCrAlX alloy, either with tantalum (Ta) and/or iron (Fe) or with the γ and the γ′ phase and optionally the β phase, where X is in each case optional and is at least one of the elements from the group comprising scandium (Sc), rhenium (Re) and the rare earth elements, in particular yttrium (Y), very particularly only yttrium (Y). |
