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ASM Failure Analysis Case Histories: Power Generating Equipment

ASM Failure Analysis Case Histories

ASM Failure Analysis Case Histories: Power Generating Equipment

ASM International

DOI:

https://doi.org/10.31399/asm.fach.power.9781627082297

ISBN electronic:

978-1-62708-229-7

Publication date:

2019

Book Chapter

Creep Failure Analysis of Steel Tubes

By

J.A. Pero-Sanz

School of Mines

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;

D. Plaza

School of Mines

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;

M. Ruiz

School of Aeronautics

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;

J. Asensio

School of Mines

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;

J.I. Verdeja

School of Mines

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Doi:

https://doi.org/10.31399/asm.fach.power.c9001711

Published:

2019

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Abstract

Failures of 10Cr-Mo9-10 and X 20Cr-Mo-V12-1 superheated pipes during service in steam power generation plants are described. Through micrographic and fractographic analysis, creep and overheating were identified as the cause of failure. The Larson-Miller parameter is computed, as a function of oxidation thickness, temperature and time, confirming the creep failure diagnostic.

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