Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades

Detalhes bibliográficos
Autor(a) principal: Comeli, Franco Wronski
Data de Publicação: 2018
Outros Autores: Rocha, Alexandre da Silva, Oliveira, Carlos Augusto Silva de, Lemos, Georges, Castro, Richard de Medeiros
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/188607
Resumo: The 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.
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spelling Comeli, Franco WronskiRocha, Alexandre da SilvaOliveira, Carlos Augusto Silva deLemos, GeorgesCastro, Richard de Medeiros2019-02-08T02:32:57Z20182162-8424http://hdl.handle.net/10183/188607001087188The 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.application/pdfengAmerican Journal of Materials Science. Rosemead, CA. Vol. 8, no. 4 (2018), p. 65-72Turbinas a vaporRevenimentoResistência dos materiaisCreepX22CrMoV12-1TemperingTurbinesEffects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine bladesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001087188.pdf.txt001087188.pdf.txtExtracted Texttext/plain27884http://www.lume.ufrgs.br/bitstream/10183/188607/2/001087188.pdf.txte0fba2ecac258d71161597a53f0cde27MD52ORIGINAL001087188.pdfTexto completo (inglês)application/pdf2903782http://www.lume.ufrgs.br/bitstream/10183/188607/1/001087188.pdf27fd39a5e31d67f2a61520cbcab76399MD5110183/1886072021-03-09 04:29:38.472903oai:www.lume.ufrgs.br:10183/188607Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-03-09T07:29:38Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
title Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
spellingShingle Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
Comeli, Franco Wronski
Turbinas a vapor
Revenimento
Resistência dos materiais
Creep
X22CrMoV12-1
Tempering
Turbines
title_short Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
title_full Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
title_fullStr Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
title_full_unstemmed Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
title_sort Effects of tempering temperature on the microstructure and creep resistance of X22CrMoV12-1 steel used on steam turbine blades
author Comeli, Franco Wronski
author_facet Comeli, Franco Wronski
Rocha, Alexandre da Silva
Oliveira, Carlos Augusto Silva de
Lemos, Georges
Castro, Richard de Medeiros
author_role author
author2 Rocha, Alexandre da Silva
Oliveira, Carlos Augusto Silva de
Lemos, Georges
Castro, Richard de Medeiros
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Comeli, Franco Wronski
Rocha, Alexandre da Silva
Oliveira, Carlos Augusto Silva de
Lemos, Georges
Castro, Richard de Medeiros
dc.subject.por.fl_str_mv Turbinas a vapor
Revenimento
Resistência dos materiais
topic Turbinas a vapor
Revenimento
Resistência dos materiais
Creep
X22CrMoV12-1
Tempering
Turbines
dc.subject.eng.fl_str_mv Creep
X22CrMoV12-1
Tempering
Turbines
description The 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.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2019-02-08T02:32:57Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/188607
dc.identifier.issn.pt_BR.fl_str_mv 2162-8424
dc.identifier.nrb.pt_BR.fl_str_mv 001087188
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv American Journal of Materials Science. Rosemead, CA. Vol. 8, no. 4 (2018), p. 65-72
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