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dc.contributor.authorComeli, Franco Wronskipt_BR
dc.contributor.authorRocha, Alexandre da Silvapt_BR
dc.contributor.authorOliveira, Carlos Augusto Silva dept_BR
dc.contributor.authorLemos, Georgespt_BR
dc.contributor.authorCastro, Richard de Medeirospt_BR
dc.date.accessioned2019-02-08T02:32:57Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn2162-8424pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/188607pt_BR
dc.description.abstractThe development of manufacturing processes and materials for components of steam turbines are very important to increase the reliability and availability of power generation. These materials must have resistance to corrosion and creep, the effects of prolonged exposure to high temperature has a strong influence on metallurgical stability, causing them to fail in operation. Precipitation hardening stainless steels are thermally treated to improve their creep resistance through the formation of precipitates. The purpose of this study is to evaluate the influence of tempering temperature on the microstructure and the creep resistance of X22CrMoV12-1 steel. The microstructure was characterized by optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Analysis of the tempered samples showed a microstructure composed of martensite with M23C6 carbides located along the martensite slats. Higher tempering temperatures promoted reduction of hardness, yield and ultimate tensile with increased elongation. The X22CrMoV12-1 tempered steel at 690°C showed superior performance of its creep resistance among tempered temperatures tested.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofAmerican Journal of Materials Science. Rosemead, CA. Vol. 8, no. 4 (2018), p. 65-72pt_BR
dc.rightsOpen Accessen
dc.subjectCreepen
dc.subjectTurbinas a vaporpt_BR
dc.subjectX22CrMoV12-1en
dc.subjectRevenimentopt_BR
dc.subjectTemperingen
dc.subjectResistência dos materiaispt_BR
dc.subjectTurbinesen
dc.titleEffects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine bladespt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001087188pt_BR
dc.type.originEstrangeiropt_BR


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