Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy

We study the deformation inducing heterogeneity in an aluminum alloy 6063-T6 in the form of a sheet processed at room temperature by equal channel angular sheet extrusion (ECASE) up to a maximum equivalent strain of 1.86 following route C. The through thickness strain distribution showed higher stra...

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Authors: Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799, Higuera Cobos, Oscar Fabián, Tartalini, Vanina, Risso, Pablo, Avalos, Martina Cecilia, Bolmaro, Raúl
Format: article
Publication Date:2019
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/377853
Online Access:https://hdl.handle.net/2117/377853
https://dx.doi.org/10.1007/s00170-019-03425-7
Access Level:Open access
Keyword:Aluminum alloys
Metals
Alumini -- Aliatges
Metalls
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloyMuñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799Higuera Cobos, Oscar FabiánTartalini, VaninaRisso, PabloAvalos, Martina CeciliaBolmaro, RaúlAluminum alloysMetalsAlumini -- AliatgesMetallsÀrees temàtiques de la UPC::Enginyeria dels materialsWe study the deformation inducing heterogeneity in an aluminum alloy 6063-T6 in the form of a sheet processed at room temperature by equal channel angular sheet extrusion (ECASE) up to a maximum equivalent strain of 1.86 following route C. The through thickness strain distribution showed higher strains in the edge vicinities than in the sheet core. The texture was heterogeneous between the edges and the sheet core with a strong cube component in the initial deformation stages, and a rolling texture with the S component in the sheet edges. Different microstructural characteristics, like grain size, average misorientation, and fraction of high angle grain boundaries (HAGB), decreased by increasing the deformation. The geometrically necessary dislocation (GND) calculations corroborated the existence of a heterogeneous microstructure along the sheet thickness, giving rise to gradients of plastic deformation which allowed to obtain a good strength-ductility relationship. It was demonstrated that ECASE process was a good alternative to produce heterogeneous microstructures. The material heterogeneity was found not to be randomly distributed across the sheet thickness but rather showing higher dislocation concentration and bigger grain size reductions in the edge’s vicinities than in its middle zone.Peer Reviewed20192019-06-0120222022-12-12journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/377853https://dx.doi.org/10.1007/s00170-019-03425-7reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3778532026-05-27T15:37:01Z
dc.title.none.fl_str_mv Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
title Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
spellingShingle Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799
Aluminum alloys
Metals
Alumini -- Aliatges
Metalls
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
title_full Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
title_fullStr Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
title_full_unstemmed Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
title_sort Equal channel angular sheet extrusion (ECASE) as a precursor of heterogeneity in an AA6063-T6 alloy
dc.creator.none.fl_str_mv Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799
Higuera Cobos, Oscar Fabián
Tartalini, Vanina
Risso, Pablo
Avalos, Martina Cecilia
Bolmaro, Raúl
author Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799
author_facet Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799
Higuera Cobos, Oscar Fabián
Tartalini, Vanina
Risso, Pablo
Avalos, Martina Cecilia
Bolmaro, Raúl
author_role author
author2 Higuera Cobos, Oscar Fabián
Tartalini, Vanina
Risso, Pablo
Avalos, Martina Cecilia
Bolmaro, Raúl
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Aluminum alloys
Metals
Alumini -- Aliatges
Metalls
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Aluminum alloys
Metals
Alumini -- Aliatges
Metalls
Àrees temàtiques de la UPC::Enginyeria dels materials
description We study the deformation inducing heterogeneity in an aluminum alloy 6063-T6 in the form of a sheet processed at room temperature by equal channel angular sheet extrusion (ECASE) up to a maximum equivalent strain of 1.86 following route C. The through thickness strain distribution showed higher strains in the edge vicinities than in the sheet core. The texture was heterogeneous between the edges and the sheet core with a strong cube component in the initial deformation stages, and a rolling texture with the S component in the sheet edges. Different microstructural characteristics, like grain size, average misorientation, and fraction of high angle grain boundaries (HAGB), decreased by increasing the deformation. The geometrically necessary dislocation (GND) calculations corroborated the existence of a heterogeneous microstructure along the sheet thickness, giving rise to gradients of plastic deformation which allowed to obtain a good strength-ductility relationship. It was demonstrated that ECASE process was a good alternative to produce heterogeneous microstructures. The material heterogeneity was found not to be randomly distributed across the sheet thickness but rather showing higher dislocation concentration and bigger grain size reductions in the edge’s vicinities than in its middle zone.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-06-01
2022
2022-12-12
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/377853
https://dx.doi.org/10.1007/s00170-019-03425-7
url https://hdl.handle.net/2117/377853
https://dx.doi.org/10.1007/s00170-019-03425-7
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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