Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect

Detalhes bibliográficos
Autor(a) principal: Nourollahi,Gh. A.
Data de Publicação: 2013
Outros Autores: Farahani,M., Babakhani,A., Mirjavadi,S. 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=S1516-14392013000600013
Resumo: The true stress-strain data from isothermal hot compression tests, in the temperature range of 300-500 ºC and strain rate of 0.001-0.1s-1, were employed to study the flow behavior of AZ31 and to develop constitutive equation based on an Arrhenius-type equation. The flow stress increases with the decrease of deformation temperature and the increase of strain rate, which can be represented by Zener-Hollomon parameter in an exponential equation. The influence of strain was incorporated in the developed constitutive equation by considering the effect of strain on material constants. The results show that the proposed constitutive equations give a precise estimate for high temperature flow stress AZ31 alloy, which means it can be used for numerical simulation of hot deformation process and for choosing proper deformation parameter in engineering practice accurately.
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spelling Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effectmagnesium alloyflow behaviorconstitutive equationsnumerical modelingThe true stress-strain data from isothermal hot compression tests, in the temperature range of 300-500 ºC and strain rate of 0.001-0.1s-1, were employed to study the flow behavior of AZ31 and to develop constitutive equation based on an Arrhenius-type equation. The flow stress increases with the decrease of deformation temperature and the increase of strain rate, which can be represented by Zener-Hollomon parameter in an exponential equation. The influence of strain was incorporated in the developed constitutive equation by considering the effect of strain on material constants. The results show that the proposed constitutive equations give a precise estimate for high temperature flow stress AZ31 alloy, which means it can be used for numerical simulation of hot deformation process and for choosing proper deformation parameter in engineering practice accurately.ABM, ABC, ABPol2013-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000600013Materials Research v.16 n.6 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000149info:eu-repo/semantics/openAccessNourollahi,Gh. A.Farahani,M.Babakhani,A.Mirjavadi,S. S.eng2013-12-13T00:00:00Zoai:scielo:S1516-14392013000600013Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2013-12-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
title Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
spellingShingle Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
Nourollahi,Gh. A.
magnesium alloy
flow behavior
constitutive equations
numerical modeling
title_short Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
title_full Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
title_fullStr Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
title_full_unstemmed Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
title_sort Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
author Nourollahi,Gh. A.
author_facet Nourollahi,Gh. A.
Farahani,M.
Babakhani,A.
Mirjavadi,S. S.
author_role author
author2 Farahani,M.
Babakhani,A.
Mirjavadi,S. S.
author2_role author
author
author
dc.contributor.author.fl_str_mv Nourollahi,Gh. A.
Farahani,M.
Babakhani,A.
Mirjavadi,S. S.
dc.subject.por.fl_str_mv magnesium alloy
flow behavior
constitutive equations
numerical modeling
topic magnesium alloy
flow behavior
constitutive equations
numerical modeling
description The true stress-strain data from isothermal hot compression tests, in the temperature range of 300-500 ºC and strain rate of 0.001-0.1s-1, were employed to study the flow behavior of AZ31 and to develop constitutive equation based on an Arrhenius-type equation. The flow stress increases with the decrease of deformation temperature and the increase of strain rate, which can be represented by Zener-Hollomon parameter in an exponential equation. The influence of strain was incorporated in the developed constitutive equation by considering the effect of strain on material constants. The results show that the proposed constitutive equations give a precise estimate for high temperature flow stress AZ31 alloy, which means it can be used for numerical simulation of hot deformation process and for choosing proper deformation parameter in engineering practice accurately.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-01
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=S1516-14392013000600013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000600013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000149
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.16 n.6 2013
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_ 1754212663291805696

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