Siemens Akteingesellschaft

Werner Stamm

Product having a layer which protects against corrosion, and process for producing a layer which protects against corrosion. The invention relates to a product ( ), in particular a gas-turbine blade ( ), having a metallic basic body ( ) to which a protective layer ( ) for protecting against corrosion is bonded. The protective layer ( ) has an inner layer ( ) of a first MCrAlY alloy and an outer layer ( ) having a second MCrAlY alloy, which is bonded to the inner layer ( ). The second MCrAlY alloy is predominantly in the &ggr;-phase. The invention also relates to a process for producing a protective layer ( ) in which the outer layer ( ) is produced by re-melting a region of the inner layer ( ) or by deposition of an MCrAlY alloy from a liquid phase.

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Mülheim, Germany

Werner Stamm