Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel

Detalhes bibliográficos
Autor(a) principal: Hazarabedian,A.
Data de Publicação: 2002
Outros Autores: Marini,B.
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=S1516-14392002000200005
Resumo: Ferrite of austeno-ferritic stainless steels maintained for a long time at temperatures in the range of 270 °C to 400 °C is embrittled like the known 475 °C embrittlement of ferritic stainless steels. Deformation and damage micromechanisms of a material must be known in order to apply the "local approach to fracture" (LAF) methodology. In this work we test a previous model of damage nucleation and evolution, extending its validity to low temperature - long term aging. We have determined cracking damage evolution by taking replicas of planar tensile specimens during uniaxial traction tests. Voronoï (Dirichlet) tessellation quantitative metallography was applied to characterize and quantify non-uniform damaging. Clustering criteria allowed the determination of the size, density and internal damaging rate of damage clusters.
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spelling Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steelduplex austeno-ferritic stainless steelthermal agingmetallographyVoronoïFerrite of austeno-ferritic stainless steels maintained for a long time at temperatures in the range of 270 °C to 400 °C is embrittled like the known 475 °C embrittlement of ferritic stainless steels. Deformation and damage micromechanisms of a material must be known in order to apply the "local approach to fracture" (LAF) methodology. In this work we test a previous model of damage nucleation and evolution, extending its validity to low temperature - long term aging. We have determined cracking damage evolution by taking replicas of planar tensile specimens during uniaxial traction tests. Voronoï (Dirichlet) tessellation quantitative metallography was applied to characterize and quantify non-uniform damaging. Clustering criteria allowed the determination of the size, density and internal damaging rate of damage clusters.ABM, ABC, ABPol2002-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392002000200005Materials Research v.5 n.2 2002reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392002000200005info:eu-repo/semantics/openAccessHazarabedian,A.Marini,B.eng2002-09-05T00:00:00Zoai:scielo:S1516-14392002000200005Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2002-09-05T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
title Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
spellingShingle Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
Hazarabedian,A.
duplex austeno-ferritic stainless steel
thermal aging
metallography
Voronoï
title_short Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
title_full Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
title_fullStr Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
title_full_unstemmed Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
title_sort Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel
author Hazarabedian,A.
author_facet Hazarabedian,A.
Marini,B.
author_role author
author2 Marini,B.
author2_role author
dc.contributor.author.fl_str_mv Hazarabedian,A.
Marini,B.
dc.subject.por.fl_str_mv duplex austeno-ferritic stainless steel
thermal aging
metallography
Voronoï
topic duplex austeno-ferritic stainless steel
thermal aging
metallography
Voronoï
description Ferrite of austeno-ferritic stainless steels maintained for a long time at temperatures in the range of 270 °C to 400 °C is embrittled like the known 475 °C embrittlement of ferritic stainless steels. Deformation and damage micromechanisms of a material must be known in order to apply the "local approach to fracture" (LAF) methodology. In this work we test a previous model of damage nucleation and evolution, extending its validity to low temperature - long term aging. We have determined cracking damage evolution by taking replicas of planar tensile specimens during uniaxial traction tests. Voronoï (Dirichlet) tessellation quantitative metallography was applied to characterize and quantify non-uniform damaging. Clustering criteria allowed the determination of the size, density and internal damaging rate of damage clusters.
publishDate 2002
dc.date.none.fl_str_mv 2002-06-01
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=S1516-14392002000200005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392002000200005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392002000200005
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.5 n.2 2002
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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