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dc.contributor.author이영국-
dc.contributor.author정우상-
dc.contributor.author심재혁-
dc.contributor.author김명연-
dc.contributor.author추동주-
dc.date.accessioned2021-06-09T04:22:19Z-
dc.date.available2021-06-09T04:22:19Z-
dc.date.issued2019-08-
dc.identifier.citationVOL 188-335-
dc.identifier.issn0951-8320-
dc.identifier.other52860-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/69513-
dc.description.abstractNon-destructive testing (NDT) is the process of evaluating and inspecting materials without damage. The purpose of present study is to evaluate the residual lifetime of materials by proposing a new concept of non-destructive testing. The residual lifetime of service-exposed 1.25Cr-0.5Mo (P11) steel cold-reheater pipes in a coal-fired power plant, which were used for approximately 23 years at 310 °C, was investigated with accelerated degradation tests of a fresh P11 steel. The hardness and the microstructure of the P11 steel aged at 550 °C for 1000&#8239-
dc.description.abstracth were similar to those of the service-exposed cold-reheater pipe. The creep-rupture tests of the steel aged at 550 °C for 1000&#8239-
dc.description.abstracth were performed under various temperature and stress conditions together with the fresh steel. The creep-rupture properties analyzed using a Larson&#8211-
dc.description.abstractMiller parameter (LMP) approach suggested that the residual lifetime of the service-exposed pipes is approximately 53% at the current conditions. The proposed methodology is expected to serve as a useful tool to check the timing of materials replacement and to maintain safety in a coal-fired power plant.-
dc.publisherReliability engineering & system safety-
dc.subject1.25Cr-0.5Mo steel-
dc.subjectCold-reheater pipe-
dc.subjectCreep-
dc.subjectLMP-
dc.subjectResidual lifetime-
dc.titleResidual lifetime assessment of cold-reheater pipe in coal-fired power plant through accelerated degradation test-
dc.typeArticle-
dc.relation.page330335-
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