Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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=S1516-14392014000300019 |
Resumo: | In this work, the corrosion behaviors of friction-stir lap welding of 6061-T6 Al-alloy are studied. The friction-stir lap welding was performed under different welding conditions (rotation speed and welding speed). The corrosion behavior of the parent alloy, the weld nugget zone (WNZ), and the heat affected zone (HAZ) of each welded sample working as an electrode, were investigated by the Tafel polarization test in 3.5 wt. (%) NaCl at ambient temperature. The morphology of the corroded surface of each region was analyzed by scanning electron microscopy together with energy dispersive spectroscopy (SEM-EDS). The results showed that the corrosion resistance of the parent alloy was better than the WNZ and the HAZ in both welding conditions. Localized pit dissolution and intergranular corrosion were the dominant corrosion types observed in the parent alloy, WNZ, and HAZ. The parent alloy, WNZ, and HAZ exhibited similar corrosion potentials (Ecorr) after T6 heat treatment. This treatment had a better effect on the corrosion resistance of the welded regions than the parent alloy. |
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Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloyfriction stir lap weldingaluminum alloytafel polarizationintergranular corrosionlocalized pit dissolutionIn this work, the corrosion behaviors of friction-stir lap welding of 6061-T6 Al-alloy are studied. The friction-stir lap welding was performed under different welding conditions (rotation speed and welding speed). The corrosion behavior of the parent alloy, the weld nugget zone (WNZ), and the heat affected zone (HAZ) of each welded sample working as an electrode, were investigated by the Tafel polarization test in 3.5 wt. (%) NaCl at ambient temperature. The morphology of the corroded surface of each region was analyzed by scanning electron microscopy together with energy dispersive spectroscopy (SEM-EDS). The results showed that the corrosion resistance of the parent alloy was better than the WNZ and the HAZ in both welding conditions. Localized pit dissolution and intergranular corrosion were the dominant corrosion types observed in the parent alloy, WNZ, and HAZ. The parent alloy, WNZ, and HAZ exhibited similar corrosion potentials (Ecorr) after T6 heat treatment. This treatment had a better effect on the corrosion resistance of the welded regions than the parent alloy.ABM, ABC, ABPol2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300019Materials Research v.17 n.3 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392014005000053info:eu-repo/semantics/openAccessGharavi,FarhadMatori,Khamirul AminYunus,RobiahOthman,Norinsan Kamileng2014-06-18T00:00:00Zoai:scielo:S1516-14392014000300019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2014-06-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
title |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
spellingShingle |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy Gharavi,Farhad friction stir lap welding aluminum alloy tafel polarization intergranular corrosion localized pit dissolution |
title_short |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
title_full |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
title_fullStr |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
title_full_unstemmed |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
title_sort |
Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy |
author |
Gharavi,Farhad |
author_facet |
Gharavi,Farhad Matori,Khamirul Amin Yunus,Robiah Othman,Norinsan Kamil |
author_role |
author |
author2 |
Matori,Khamirul Amin Yunus,Robiah Othman,Norinsan Kamil |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gharavi,Farhad Matori,Khamirul Amin Yunus,Robiah Othman,Norinsan Kamil |
dc.subject.por.fl_str_mv |
friction stir lap welding aluminum alloy tafel polarization intergranular corrosion localized pit dissolution |
topic |
friction stir lap welding aluminum alloy tafel polarization intergranular corrosion localized pit dissolution |
description |
In this work, the corrosion behaviors of friction-stir lap welding of 6061-T6 Al-alloy are studied. The friction-stir lap welding was performed under different welding conditions (rotation speed and welding speed). The corrosion behavior of the parent alloy, the weld nugget zone (WNZ), and the heat affected zone (HAZ) of each welded sample working as an electrode, were investigated by the Tafel polarization test in 3.5 wt. (%) NaCl at ambient temperature. The morphology of the corroded surface of each region was analyzed by scanning electron microscopy together with energy dispersive spectroscopy (SEM-EDS). The results showed that the corrosion resistance of the parent alloy was better than the WNZ and the HAZ in both welding conditions. Localized pit dissolution and intergranular corrosion were the dominant corrosion types observed in the parent alloy, WNZ, and HAZ. The parent alloy, WNZ, and HAZ exhibited similar corrosion potentials (Ecorr) after T6 heat treatment. This treatment had a better effect on the corrosion resistance of the welded regions than the parent alloy. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
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=S1516-14392014000300019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392014005000053 |
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.17 n.3 2014 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_ |
1754212664965332992 |