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Abstract

This article focuses on the life assessment methods for elevated-temperature failure mechanisms and metallurgical instabilities that reduce life or cause loss of function or operating time of high-temperature components, namely, gas turbine blade, and power plant piping and tubing. The article discusses metallurgical instabilities of steel-based alloys and nickel-base superalloys. It provides information on several life assessment methods, namely, the life fraction rule, parameter-based assessments, the thermal-mechanical fatigue, coating evaluations, hardness testing, microstructural evaluations, the creep cavitation damage assessment, the oxide-scale-based life prediction, and high-temperature crack growth methods.

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Daniel J. Benac, V.P. Swaminathan, Ph.D., 2002. "Elevated-Temperature Life Assessment for Turbine Components, Piping, and Tubing", Failure Analysis and Prevention, William T. Becker, Roch J. Shipley

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