Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels

Detalhes bibliográficos
Autor(a) principal: Henry,Ovri
Data de Publicação: 2008
Outros Autores: Monde,Kamma Celestine
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=S1516-14392008000100019
Resumo: The influence of starting point microstructures on the transformation mechanisms and mechanical properties of a micro alloyed steel after annealing in the alpha + gamma region have been investigated. Three different microstructures: austenite, pearlite in a ferrite matrix and martensite were used as starting point microstructures for the production of dual (alpha + <IMG SRC="/img/revistas/mr/v11n1/18s1.gif">) phase structures in the test steel. Photomicrographs obtained from metallographic examination of the heat treated samples were used as criteria for the assessment of results obtained from impact toughness and hardness testing. The results obtained showed that the transformation mechanisms and hence the morphology of ferrite - martensite microalloyed steels are strongly influenced by their initial microstructural details. Ferrite - martensite structures produced via the intercritical quench (IQ) treatment, with martensite as the starting point microstructure, have the best combination of hardness and impact energy.
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spelling Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steelsstep quenchingintercritical quenchingintercritical annealingThe influence of starting point microstructures on the transformation mechanisms and mechanical properties of a micro alloyed steel after annealing in the alpha + gamma region have been investigated. Three different microstructures: austenite, pearlite in a ferrite matrix and martensite were used as starting point microstructures for the production of dual (alpha + <IMG SRC="/img/revistas/mr/v11n1/18s1.gif">) phase structures in the test steel. Photomicrographs obtained from metallographic examination of the heat treated samples were used as criteria for the assessment of results obtained from impact toughness and hardness testing. The results obtained showed that the transformation mechanisms and hence the morphology of ferrite - martensite microalloyed steels are strongly influenced by their initial microstructural details. Ferrite - martensite structures produced via the intercritical quench (IQ) treatment, with martensite as the starting point microstructure, have the best combination of hardness and impact energy.ABM, ABC, ABPol2008-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000100019Materials Research v.11 n.1 2008reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392008000100019info:eu-repo/semantics/openAccessHenry,OvriMonde,Kamma Celestineeng2008-05-05T00:00:00Zoai:scielo:S1516-14392008000100019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2008-05-05T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
title Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
spellingShingle Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
Henry,Ovri
step quenching
intercritical quenching
intercritical annealing
title_short Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
title_full Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
title_fullStr Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
title_full_unstemmed Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
title_sort Evaluation of the transformation mechanisms and mechanical properties of ferrite: martensite microalloyed steels
author Henry,Ovri
author_facet Henry,Ovri
Monde,Kamma Celestine
author_role author
author2 Monde,Kamma Celestine
author2_role author
dc.contributor.author.fl_str_mv Henry,Ovri
Monde,Kamma Celestine
dc.subject.por.fl_str_mv step quenching
intercritical quenching
intercritical annealing
topic step quenching
intercritical quenching
intercritical annealing
description The influence of starting point microstructures on the transformation mechanisms and mechanical properties of a micro alloyed steel after annealing in the alpha + gamma region have been investigated. Three different microstructures: austenite, pearlite in a ferrite matrix and martensite were used as starting point microstructures for the production of dual (alpha + <IMG SRC="/img/revistas/mr/v11n1/18s1.gif">) phase structures in the test steel. Photomicrographs obtained from metallographic examination of the heat treated samples were used as criteria for the assessment of results obtained from impact toughness and hardness testing. The results obtained showed that the transformation mechanisms and hence the morphology of ferrite - martensite microalloyed steels are strongly influenced by their initial microstructural details. Ferrite - martensite structures produced via the intercritical quench (IQ) treatment, with martensite as the starting point microstructure, have the best combination of hardness and impact energy.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
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=S1516-14392008000100019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000100019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392008000100019
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.11 n.1 2008
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
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