Substrate features for mitigating stress

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United States of America Patent

PATENT NO 9194243
APP PUB NO 20110014060A1
SERIAL NO

12837024

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An 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.

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Patent Owner(s)

  • ROLLS-ROYCE CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bolcavage, Ann Indianoplis, US 37 534
Sinatra, Raymond J Indianapolis, US 11 244

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