Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B

Detalhes bibliográficos
Autor(a) principal: Luna,Carlos Fernando
Data de Publicação: 2018
Outros Autores: Arenas,Fernando Franco, Pereira,Victor Ferrinho, Ávila,Julián Arnaldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista soldagem & inspeção (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242018000100052
Resumo: Abstract Light-alloys play a significant role in saving weight in automotive and aerospace industries; however, a few joining methods guarantee mechanical and fatigue strengths for high performance application. Even conventional arc welding processes do not offer constant quality joints. Therefore, this study uses an alternative solid-state welding process, friction stir welding (FSW), to analyze post processing microstructures and assess mechanical and fatigue strength. Magnesium alloy AZ31B plates were welded using different welding parameters in a dedicated FSW machine. The effect of the spindle speed (ω) and welding speed (ν) on the microstructure, the tensile strength and fatigue were studied. The stirred zone (SZ) at the FS-welded joints presented a microstructure composed by homogeneous equiaxial grains, refined by dynamic recrystallization. A rise in grain size, weld bead width, tensile and fatigue strengths with the increase of speed ratio (ω/ν) were observed. Results of the fatigue and mechanical strength here presented outperformed results from welds made with conventional milling machines.
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spelling Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31BMagnesium AZ31BFatigue strengthTensile strengthFriction stir weldingFSWAbstract Light-alloys play a significant role in saving weight in automotive and aerospace industries; however, a few joining methods guarantee mechanical and fatigue strengths for high performance application. Even conventional arc welding processes do not offer constant quality joints. Therefore, this study uses an alternative solid-state welding process, friction stir welding (FSW), to analyze post processing microstructures and assess mechanical and fatigue strength. Magnesium alloy AZ31B plates were welded using different welding parameters in a dedicated FSW machine. The effect of the spindle speed (ω) and welding speed (ν) on the microstructure, the tensile strength and fatigue were studied. The stirred zone (SZ) at the FS-welded joints presented a microstructure composed by homogeneous equiaxial grains, refined by dynamic recrystallization. A rise in grain size, weld bead width, tensile and fatigue strengths with the increase of speed ratio (ω/ν) were observed. Results of the fatigue and mechanical strength here presented outperformed results from welds made with conventional milling machines.Associação Brasileira de Soldagem2018-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242018000100052Soldagem & Inspeção v.23 n.1 2018reponame:Revista soldagem & inspeção (Online)instname:Associação Brasileira de Soldagem (ABS)instacron:ABS10.1590/0104-9224/si2301.06info:eu-repo/semantics/openAccessLuna,Carlos FernandoArenas,Fernando FrancoPereira,Victor FerrinhoÁvila,Julián Arnaldoeng2018-06-07T00:00:00Zoai:scielo:S0104-92242018000100052Revistahttp://abs-soldagem.org.br/s&i/https://old.scielo.br/oai/scielo-oai.php||revista-si@abs-soldagem.org.br0104-92241980-6973opendoar:2018-06-07T00:00Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS)false
dc.title.none.fl_str_mv Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
title Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
spellingShingle Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
Luna,Carlos Fernando
Magnesium AZ31B
Fatigue strength
Tensile strength
Friction stir welding
FSW
title_short Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
title_full Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
title_fullStr Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
title_full_unstemmed Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
title_sort Mechanical and Fatigue Strength Assessment of Friction Stir Welded Plates of Magnesium Alloy AZ31B
author Luna,Carlos Fernando
author_facet Luna,Carlos Fernando
Arenas,Fernando Franco
Pereira,Victor Ferrinho
Ávila,Julián Arnaldo
author_role author
author2 Arenas,Fernando Franco
Pereira,Victor Ferrinho
Ávila,Julián Arnaldo
author2_role author
author
author
dc.contributor.author.fl_str_mv Luna,Carlos Fernando
Arenas,Fernando Franco
Pereira,Victor Ferrinho
Ávila,Julián Arnaldo
dc.subject.por.fl_str_mv Magnesium AZ31B
Fatigue strength
Tensile strength
Friction stir welding
FSW
topic Magnesium AZ31B
Fatigue strength
Tensile strength
Friction stir welding
FSW
description Abstract Light-alloys play a significant role in saving weight in automotive and aerospace industries; however, a few joining methods guarantee mechanical and fatigue strengths for high performance application. Even conventional arc welding processes do not offer constant quality joints. Therefore, this study uses an alternative solid-state welding process, friction stir welding (FSW), to analyze post processing microstructures and assess mechanical and fatigue strength. Magnesium alloy AZ31B plates were welded using different welding parameters in a dedicated FSW machine. The effect of the spindle speed (ω) and welding speed (ν) on the microstructure, the tensile strength and fatigue were studied. The stirred zone (SZ) at the FS-welded joints presented a microstructure composed by homogeneous equiaxial grains, refined by dynamic recrystallization. A rise in grain size, weld bead width, tensile and fatigue strengths with the increase of speed ratio (ω/ν) were observed. Results of the fatigue and mechanical strength here presented outperformed results from welds made with conventional milling machines.
publishDate 2018
dc.date.none.fl_str_mv 2018-03-01
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=S0104-92242018000100052
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242018000100052
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-9224/si2301.06
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 Associação Brasileira de Soldagem
publisher.none.fl_str_mv Associação Brasileira de Soldagem
dc.source.none.fl_str_mv Soldagem & Inspeção v.23 n.1 2018
reponame:Revista soldagem & inspeção (Online)
instname:Associação Brasileira de Soldagem (ABS)
instacron:ABS
instname_str Associação Brasileira de Soldagem (ABS)
instacron_str ABS
institution ABS
reponame_str Revista soldagem & inspeção (Online)
collection Revista soldagem & inspeção (Online)
repository.name.fl_str_mv Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS)
repository.mail.fl_str_mv ||revista-si@abs-soldagem.org.br
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