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SUBSTRATE FEATURES FOR MITIGATING THERMAL STRESS ON AN ARTICLE COATED WITH A THERMAL BARRIER COATING
SUBSTRATE FEATURES FOR MITIGATING THERMAL STRESS ON AN ARTICLE COATED WITH A THERMAL BARRIER COATING
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机译:用于缓解涂有热障涂层的物品上的热应力的基质特征
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摘要
ASTRACT SUBSTRATE FEATURES FOR MITIGATING STRESSAn article may include an array of features formed in a substrate and may be coated with a coating layer. The array of features may mitigate stress experienced by the coated article. In particular, the array of features may reduce or limit crack propagation at the interface between the substrate and the coating layer. In some examples, the article is an airfoil that includes a tip that defines an edge. An array of features is formed on the surface of the tip, where the array of features is proximate to the edge, and the array of features does not intersect the edge. The airfoil includes a coating layer formed on the surface of the tip and the array of features.FIG.14A
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