475 °C Embrittlement in a duplex stainless steel UNS S31803

Detalhes bibliográficos
Autor(a) principal: Tavares,S.S.M.
Data de Publicação: 2001
Outros Autores: Noronha,R.F. de, Silva,M.R. da, Neto,J.M., Pairis,S.
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=S1516-14392001000400003
Resumo: The susceptibility of a duplex stainless steel UNS S31803 to thermal embrittlement at 475 °C was evaluated by means of mechanical tests (impact energy and hardness), magnetic measurements (hysteresis and thermomagnetic analysis) and scanning electron microscopy. The results show that the material undergoes severe embrittlement and hardening in the first 100 h. The corrosion resistance of the ferrite phase in a 10%HNO3 + 0.05%HF solution deteriorated after 500 h of ageing. The Curie temperature (Tc) was the most sensitive magnetic property to the microstructural changes that promote embrittlement. Tc increases with ageing time due to the progressive reduction of chromium in the Fe-rich matrix during spinodal decomposition.
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spelling 475 °C Embrittlement in a duplex stainless steel UNS S31803duplex stainless steel475 °C embrittlementThe susceptibility of a duplex stainless steel UNS S31803 to thermal embrittlement at 475 °C was evaluated by means of mechanical tests (impact energy and hardness), magnetic measurements (hysteresis and thermomagnetic analysis) and scanning electron microscopy. The results show that the material undergoes severe embrittlement and hardening in the first 100 h. The corrosion resistance of the ferrite phase in a 10%HNO3 + 0.05%HF solution deteriorated after 500 h of ageing. The Curie temperature (Tc) was the most sensitive magnetic property to the microstructural changes that promote embrittlement. Tc increases with ageing time due to the progressive reduction of chromium in the Fe-rich matrix during spinodal decomposition.ABM, ABC, ABPol2001-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392001000400003Materials Research v.4 n.4 2001reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392001000400003info:eu-repo/semantics/openAccessTavares,S.S.M.Noronha,R.F. deSilva,M.R. daNeto,J.M.Pairis,S.eng2002-01-09T00:00:00Zoai:scielo:S1516-14392001000400003Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2002-01-09T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv 475 °C Embrittlement in a duplex stainless steel UNS S31803
title 475 °C Embrittlement in a duplex stainless steel UNS S31803
spellingShingle 475 °C Embrittlement in a duplex stainless steel UNS S31803
Tavares,S.S.M.
duplex stainless steel
475 °C embrittlement
title_short 475 °C Embrittlement in a duplex stainless steel UNS S31803
title_full 475 °C Embrittlement in a duplex stainless steel UNS S31803
title_fullStr 475 °C Embrittlement in a duplex stainless steel UNS S31803
title_full_unstemmed 475 °C Embrittlement in a duplex stainless steel UNS S31803
title_sort 475 °C Embrittlement in a duplex stainless steel UNS S31803
author Tavares,S.S.M.
author_facet Tavares,S.S.M.
Noronha,R.F. de
Silva,M.R. da
Neto,J.M.
Pairis,S.
author_role author
author2 Noronha,R.F. de
Silva,M.R. da
Neto,J.M.
Pairis,S.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Tavares,S.S.M.
Noronha,R.F. de
Silva,M.R. da
Neto,J.M.
Pairis,S.
dc.subject.por.fl_str_mv duplex stainless steel
475 °C embrittlement
topic duplex stainless steel
475 °C embrittlement
description The susceptibility of a duplex stainless steel UNS S31803 to thermal embrittlement at 475 °C was evaluated by means of mechanical tests (impact energy and hardness), magnetic measurements (hysteresis and thermomagnetic analysis) and scanning electron microscopy. The results show that the material undergoes severe embrittlement and hardening in the first 100 h. The corrosion resistance of the ferrite phase in a 10%HNO3 + 0.05%HF solution deteriorated after 500 h of ageing. The Curie temperature (Tc) was the most sensitive magnetic property to the microstructural changes that promote embrittlement. Tc increases with ageing time due to the progressive reduction of chromium in the Fe-rich matrix during spinodal decomposition.
publishDate 2001
dc.date.none.fl_str_mv 2001-10-01
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=S1516-14392001000400003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392001000400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392001000400003
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.4 n.4 2001
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_ 1754212656908075008

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