METHOD OF FACILITATING VISUAL DETECTION OF A CRACK IN A COMPONENT OF A GAS TURBINE ENGINE

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United States of America Patent

SERIAL NO

15723819

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Abstract

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A component of a gas turbine engine comprises a substrate, a corrosion resistant top layer, and an intermediate corrodible layer disposed between the corrosion resistant top layer and the substrate. When corroding, the intermediate layer has a color contrasting with a color of the top layer. A method of detecting a crack when it penetrated the top layer in a component of a gas turbine engine having a corrosion resistant top layer and an intermediate corrodible layer comprises, in sequence, observing that at least one area of the component has a color contrasting with that of the top layer; determining that the color of the at least one area is a result of corrosion of the intermediate corrodible layer; and determining that the top layer has a crack as a result of determining corrosion of the intermediate layer. A method of facilitating crack detection in a component is also presented.

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Patent Owner(s)

Patent OwnerAddress
PRATT & WHITNEY CANADA CORPLONGUEUIL QUÉBEC J4G 1A1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CHEUNG, Kin-Leung Toronto, CA 20 231

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