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product with a protective layer against corrosion, and process for the production of a protective layer against corrosion
product with a protective layer against corrosion, and process for the production of a protective layer against corrosion
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机译:带有防腐蚀保护层的产品以及生产防腐蚀保护层的方法
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摘要
The invention relates to a product (1), in particular a gas-turbine blade (1), having a metallic basic body (2) to which a protective layer (3, 4) for protecting against corrosion is bonded. The protective layer (3, 4) has an inner layer (3) of a first MCrAlY alloy and an outer layer (45) having a second MCrAlY alloy, which is bonded to the inner layer (3). The second MCrAlY alloy is predominantly in the gamma-phase. The invention also relates to a process for producing a protective layer (3, 4) in which the outer layer (4) is produced by re-melting a region of the inner layer (3) or by deposition of an MCrAlY alloy from a liquid phase.
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