Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy
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...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2014-05-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300019&tlng=en |
| _version_ | 1818972309985165312 |
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| author | Farhad Gharavi Khamirul Amin Matori Robiah Yunus Norinsan Kamil Othman |
| author_facet | Farhad Gharavi Khamirul Amin Matori Robiah Yunus Norinsan Kamil Othman |
| author_sort | Farhad Gharavi |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-20T15:06:14Z |
| format | Article |
| id | doaj.art-d047968916d84456916b3669d44c4c64 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T15:06:14Z |
| publishDate | 2014-05-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-d047968916d84456916b3669d44c4c642022-12-21T19:36:28ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392014-05-0117367268110.1590/S1516-14392014005000053Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloyFarhad Gharavi0Khamirul Amin Matori1Robiah YunusNorinsan Kamil Othman2Universiti Putra MalaysiaUniversiti Putra MalaysiaUniversiti Kebangsaan MalaysIn 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300019&tlng=enfriction stir lap weldingaluminum alloytafel polarizationintergranular corrosionlocalized pit dissolution |
| spellingShingle | Farhad Gharavi Khamirul Amin Matori Robiah Yunus Norinsan Kamil Othman Corrosion behavior of friction stir welded lap joints of AA6061-T6 aluminum alloy Materials Research friction stir lap welding aluminum alloy tafel polarization intergranular corrosion localized pit dissolution |
| title | 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_short | 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 |
| topic | friction stir lap welding aluminum alloy tafel polarization intergranular corrosion localized pit dissolution |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300019&tlng=en |
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