Failure Analysis on Tee Joint Crack of Subcritical Power Station Boiler Platen Superheater Header
2012 ◽
Vol 538-541
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pp. 1992-1997
Keyword(s):
Failure cause analysis was carried out on tee joint crack of boiler platen superheater header (12Cr1MoV) of subcritical power station applying microanalysis, mechanical properties test, chemical composition analysis, metallography examination and SEM observation etc. Results indicated that the tee joint crack originated at the original defects, connected with reheat cracks during propagation and led to leakage finally. The improper structure, the original welding defects, overhigh welding heat input, and excessive welding residual stress resulted in the leakage failure.
2012 ◽
Vol 251
◽
pp. 446-449
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2013 ◽
Vol 318
◽
pp. 331-335
2021 ◽
Vol 2133
(1)
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pp. 012028
2011 ◽
Vol 311-313
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pp. 615-618
2013 ◽
Vol 284-287
◽
pp. 1235-1241
Keyword(s):
2012 ◽
Vol 235
◽
pp. 96-100
Keyword(s):