Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel

Detalhes bibliográficos
Autor(a) principal: May,José Eduardo
Data de Publicação: 2010
Outros Autores: Souza,Carlos Alberto Caldas de, Nascente,Pedro Augusto de Paula, Soares,Paulo, Lepienski,Carlos Mauricio, Kuri,Sebastião Elias
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400003
Resumo: The corrosion properties of a 22.5 wt. (%) Cr duplex stainless steel were investigated after long-term aging of 3000, 5000 and 7000 hours at 300 and 400 ºC. The corrosion resistance was measured based on mass loss in a FeCl3 10 wt. (%) solution and electrochemical measurements in a 0.1 M H2SO4 solution. The results indicate that the corrosion resistance decreased steadily up to 5000 hours of aging. However, the samples subjected to 7000 hours of aging showed better corrosion resistance than those aged for 3000 and 5000 hours. This effect is attributed to the phase transformation that occurs during aging, a finding which was confirmed by hardness, transmission electron microscopy and X-ray photoelectron spectroscopy measurements.
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spelling Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steelduplex stainless steelcorrosionstructural characterizationlong-term agingThe corrosion properties of a 22.5 wt. (%) Cr duplex stainless steel were investigated after long-term aging of 3000, 5000 and 7000 hours at 300 and 400 ºC. The corrosion resistance was measured based on mass loss in a FeCl3 10 wt. (%) solution and electrochemical measurements in a 0.1 M H2SO4 solution. The results indicate that the corrosion resistance decreased steadily up to 5000 hours of aging. However, the samples subjected to 7000 hours of aging showed better corrosion resistance than those aged for 3000 and 5000 hours. This effect is attributed to the phase transformation that occurs during aging, a finding which was confirmed by hardness, transmission electron microscopy and X-ray photoelectron spectroscopy measurements.ABM, ABC, ABPol2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400003Materials Research v.13 n.4 2010reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392010000400003info:eu-repo/semantics/openAccessMay,José EduardoSouza,Carlos Alberto Caldas deNascente,Pedro Augusto de PaulaSoares,PauloLepienski,Carlos MauricioKuri,Sebastião Eliaseng2011-01-26T00:00:00Zoai:scielo:S1516-14392010000400003Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-01-26T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
title Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
spellingShingle Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
May,José Eduardo
duplex stainless steel
corrosion
structural characterization
long-term aging
title_short Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
title_full Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
title_fullStr Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
title_full_unstemmed Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
title_sort Effect of thermal aging conditions on the corrosion properties and hardness of a duplex stainless steel
author May,José Eduardo
author_facet May,José Eduardo
Souza,Carlos Alberto Caldas de
Nascente,Pedro Augusto de Paula
Soares,Paulo
Lepienski,Carlos Mauricio
Kuri,Sebastião Elias
author_role author
author2 Souza,Carlos Alberto Caldas de
Nascente,Pedro Augusto de Paula
Soares,Paulo
Lepienski,Carlos Mauricio
Kuri,Sebastião Elias
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv May,José Eduardo
Souza,Carlos Alberto Caldas de
Nascente,Pedro Augusto de Paula
Soares,Paulo
Lepienski,Carlos Mauricio
Kuri,Sebastião Elias
dc.subject.por.fl_str_mv duplex stainless steel
corrosion
structural characterization
long-term aging
topic duplex stainless steel
corrosion
structural characterization
long-term aging
description The corrosion properties of a 22.5 wt. (%) Cr duplex stainless steel were investigated after long-term aging of 3000, 5000 and 7000 hours at 300 and 400 ºC. The corrosion resistance was measured based on mass loss in a FeCl3 10 wt. (%) solution and electrochemical measurements in a 0.1 M H2SO4 solution. The results indicate that the corrosion resistance decreased steadily up to 5000 hours of aging. However, the samples subjected to 7000 hours of aging showed better corrosion resistance than those aged for 3000 and 5000 hours. This effect is attributed to the phase transformation that occurs during aging, a finding which was confirmed by hardness, transmission electron microscopy and X-ray photoelectron spectroscopy measurements.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392010000400003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.13 n.4 2010
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212659697287168

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