Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
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=S1516-14392013000300004 |
Resumo: | Magnesium alloys often exhibit cracking and segmentation after equal-channel angular pressing (ECAP) at room temperature. With torsion shear deformation and a hydrostatic stress, high-pressure torsion (HPT) has an advantage over ECAP in the processing of hard-to-deform materials like magnesium alloys at room temperature. In this report, HPT was used on extruded AZ31 Mg alloy at temperatures of 296, 373 and 473 K for 1 and 5 turns. After HPT processing, the hcp crystal c-axis rotated from the disc (r,θ) plane towards the torsion axis. The angle between the c-axis and the torsion axis (Φ) has a relationship with the HPT processing temperature. It was found that the c-axis was 10º from the torsion axis at 296 and 373 K but 5º from the torsion axis at 473 K. The activity of the basal <a> slip and the twinning exert significant contributions to the deformation. Microstructural features such as the grain size and grain size distributions were examined and correlated with the mechanical properties through the microhardness values. |
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Materials research (São Carlos. Online) |
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Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsionhigh-pressure torsionmagnesium alloysmicrostructuretextureMagnesium alloys often exhibit cracking and segmentation after equal-channel angular pressing (ECAP) at room temperature. With torsion shear deformation and a hydrostatic stress, high-pressure torsion (HPT) has an advantage over ECAP in the processing of hard-to-deform materials like magnesium alloys at room temperature. In this report, HPT was used on extruded AZ31 Mg alloy at temperatures of 296, 373 and 473 K for 1 and 5 turns. After HPT processing, the hcp crystal c-axis rotated from the disc (r,θ) plane towards the torsion axis. The angle between the c-axis and the torsion axis (Φ) has a relationship with the HPT processing temperature. It was found that the c-axis was 10º from the torsion axis at 296 and 373 K but 5º from the torsion axis at 473 K. The activity of the basal <a> slip and the twinning exert significant contributions to the deformation. Microstructural features such as the grain size and grain size distributions were examined and correlated with the mechanical properties through the microhardness values.ABM, ABC, ABPol2013-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000300004Materials Research v.16 n.3 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000025info:eu-repo/semantics/openAccessHuang,YiFigueiredo,Roberto B.Baudin,ThierryHelbert,Anne-LaureBrisset,FrançoisLangdon,Terence G.eng2013-06-04T00:00:00Zoai:scielo:S1516-14392013000300004Revistahttp://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 |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
title |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
spellingShingle |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion Huang,Yi high-pressure torsion magnesium alloys microstructure texture |
title_short |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
title_full |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
title_fullStr |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
title_full_unstemmed |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
title_sort |
Microstructure and texture evolution in a magnesium alloy during processing by high-pressure torsion |
author |
Huang,Yi |
author_facet |
Huang,Yi Figueiredo,Roberto B. Baudin,Thierry Helbert,Anne-Laure Brisset,François Langdon,Terence G. |
author_role |
author |
author2 |
Figueiredo,Roberto B. Baudin,Thierry Helbert,Anne-Laure Brisset,François Langdon,Terence G. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Huang,Yi Figueiredo,Roberto B. Baudin,Thierry Helbert,Anne-Laure Brisset,François Langdon,Terence G. |
dc.subject.por.fl_str_mv |
high-pressure torsion magnesium alloys microstructure texture |
topic |
high-pressure torsion magnesium alloys microstructure texture |
description |
Magnesium alloys often exhibit cracking and segmentation after equal-channel angular pressing (ECAP) at room temperature. With torsion shear deformation and a hydrostatic stress, high-pressure torsion (HPT) has an advantage over ECAP in the processing of hard-to-deform materials like magnesium alloys at room temperature. In this report, HPT was used on extruded AZ31 Mg alloy at temperatures of 296, 373 and 473 K for 1 and 5 turns. After HPT processing, the hcp crystal c-axis rotated from the disc (r,θ) plane towards the torsion axis. The angle between the c-axis and the torsion axis (Φ) has a relationship with the HPT processing temperature. It was found that the c-axis was 10º from the torsion axis at 296 and 373 K but 5º from the torsion axis at 473 K. The activity of the basal <a> slip and the twinning exert significant contributions to the deformation. Microstructural features such as the grain size and grain size distributions were examined and correlated with the mechanical properties through the microhardness values. |
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=S1516-14392013000300004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000300004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392013005000025 |
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_ |
1754212662840918016 |