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A corrosion protective coating for a metallic article and a method of applying a corrosion protective coating to a metallic article
A corrosion protective coating for a metallic article and a method of applying a corrosion protective coating to a metallic article
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机译:用于金属制品的腐蚀防护涂层以及将腐蚀防护涂层施加到金属制品的方法
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摘要
A corrosion protective coating (22) for the root (18) of a superalloy turbine blade (10) comprises a platinum enriched outer layer (24) on the root (18) of the turbine blade (10) and an alumina layer (26) on the platinum enriched outer layer (24). The platinum enriched layer (24) comprises platinum enriched gamma prime phase (36) in a platinum enriched gamma phase (34) matrix. The corrosion protective coating (22) provides protection against low temperature corrosion, high temperature corrosion and oxidation. The platinum enriched layer (24) is provided with a compressive stress to improve fatigue life.
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