PROTECTIVE LAYER FOR THE PROTECTION OF A COMPONENT AGAINST CORROSION AND OXIDATION AT ELEVATED TEMPE

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The invention relates to a protective layer for the protection of a component against corrosion and oxidation at elevated temperatures. Previously known protective layers with a high Al and/or Cr content, which are additionally reinforced with Re, form brittle phases that embrittle further during use due to the influence of carbon. The inventive protective layer is composed of 0.5 to 2 percent rhenium, 24 to 26 percent cobalt, 15 to 21 percent chromium, 9 to 11.5 percent aluminum, 0.05 to 0.7 percent yttrium and/or at least one equivalent metal from the group comprising scandium and the rare earth elements, 0 to 1 percent ruthenium, the remainder consisting of cobalt and/or nickel and production-related impurities. Said protective layer is subject to hardly any embrittlement resulting from Cr/Re precipitations.