Heterogeneous flow during high-pressure torsion

Detalhes bibliográficos
Autor(a) principal: Figueiredo,Roberto B.
Data de Publicação: 2013
Outros Autores: Langdon,Terence G.
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=S1516-14392013000300003
Resumo: High-Pressure Torsion (HPT) has attracted significant attention in recent years as an effective technique to process ultrafine and nanostructured materials. The hydrostatic pressure developed during processing prevents the occurrence of cracks and the low thickness to diameter ratio provides the opportunity for developing high strains at low numbers of rotations. The present work analyses the plastic flow during HPT. Experimental results and computer modeling are used to describe heterogeneous plastic flow. It is shown that variations in structure, hardness and in the distribution of strain are observed along the disc thickness. The sources of these heterogeneities are discussed.
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spelling Heterogeneous flow during high-pressure torsionhigh-pressure torsionplastic flowheterogeneous flowHigh-Pressure Torsion (HPT) has attracted significant attention in recent years as an effective technique to process ultrafine and nanostructured materials. The hydrostatic pressure developed during processing prevents the occurrence of cracks and the low thickness to diameter ratio provides the opportunity for developing high strains at low numbers of rotations. The present work analyses the plastic flow during HPT. Experimental results and computer modeling are used to describe heterogeneous plastic flow. It is shown that variations in structure, hardness and in the distribution of strain are observed along the disc thickness. The sources of these heterogeneities are discussed.ABM, ABC, ABPol2013-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000300003Materials Research v.16 n.3 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000036info:eu-repo/semantics/openAccessFigueiredo,Roberto B.Langdon,Terence G.eng2013-06-04T00:00:00Zoai:scielo:S1516-14392013000300003Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2013-06-04T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Heterogeneous flow during high-pressure torsion
title Heterogeneous flow during high-pressure torsion
spellingShingle Heterogeneous flow during high-pressure torsion
Figueiredo,Roberto B.
high-pressure torsion
plastic flow
heterogeneous flow
title_short Heterogeneous flow during high-pressure torsion
title_full Heterogeneous flow during high-pressure torsion
title_fullStr Heterogeneous flow during high-pressure torsion
title_full_unstemmed Heterogeneous flow during high-pressure torsion
title_sort Heterogeneous flow during high-pressure torsion
author Figueiredo,Roberto B.
author_facet Figueiredo,Roberto B.
Langdon,Terence G.
author_role author
author2 Langdon,Terence G.
author2_role author
dc.contributor.author.fl_str_mv Figueiredo,Roberto B.
Langdon,Terence G.
dc.subject.por.fl_str_mv high-pressure torsion
plastic flow
heterogeneous flow
topic high-pressure torsion
plastic flow
heterogeneous flow
description High-Pressure Torsion (HPT) has attracted significant attention in recent years as an effective technique to process ultrafine and nanostructured materials. The hydrostatic pressure developed during processing prevents the occurrence of cracks and the low thickness to diameter ratio provides the opportunity for developing high strains at low numbers of rotations. The present work analyses the plastic flow during HPT. Experimental results and computer modeling are used to describe heterogeneous plastic flow. It is shown that variations in structure, hardness and in the distribution of strain are observed along the disc thickness. The sources of these heterogeneities are discussed.
publishDate 2013
dc.date.none.fl_str_mv 2013-06-01
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=S1516-14392013000300003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000300003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000036
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.3 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_ 1754212662858743808

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