Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds
Lap joints of 6061-T6 aluminium alloy were produced by friction stir welding, and the influence of welding speed on their weld quality was investigated in terms of welding defects, micro- and macrostructures, hardness distribution, and tensile properties as well as effective plate thickness (EPT) by...
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| Format: | Article |
| Language: | English |
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Slovak Academy of Sciences, Institute of Materials and Machine Mechanics
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54768/ http://psasir.upm.edu.my/id/eprint/54768/1/Mechanical%20and%20structural%20evaluation%20of%20friction%20stir%20welded%206061%20aluminium%20alloy%20lap%20joints%20at%20different%20welding%20speeds.pdf |
| _version_ | 1848852625607360512 |
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| author | Gharavi, Farhad Fadaeifard, Firouz Matori, Khamirul Amin Yunus, Robiah Othman, N. K. |
| author_facet | Gharavi, Farhad Fadaeifard, Firouz Matori, Khamirul Amin Yunus, Robiah Othman, N. K. |
| author_sort | Gharavi, Farhad |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Lap joints of 6061-T6 aluminium alloy were produced by friction stir welding, and the influence of welding speed on their weld quality was investigated in terms of welding defects, micro- and macrostructures, hardness distribution, and tensile properties as well as effective plate thickness (EPT) by applying the welding speed in the range 20–60 mm min–1 at constant rotation speed of 1000 rpm. The results showed that although tensile shear strength, joint efficiency, and microhardness of the weld nugget zone (WNZ) rather than the heat affected zone (HAZ), and the EPT increased with an increase in welding speed, the average grain size in the WNZ rather than the HAZ decreased. Due to increasing welding speed, the hooking and thinning defects were gradually restricted from the WNZ to the WNZ/TMAZ interface. The fracture mode within the highest tensile shear strength joints was denoted as plate separation along the hook throughout the stir zone. |
| first_indexed | 2025-11-15T10:41:03Z |
| format | Article |
| id | upm-54768 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:41:03Z |
| publishDate | 2016 |
| publisher | Slovak Academy of Sciences, Institute of Materials and Machine Mechanics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-547682018-04-23T06:51:10Z http://psasir.upm.edu.my/id/eprint/54768/ Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds Gharavi, Farhad Fadaeifard, Firouz Matori, Khamirul Amin Yunus, Robiah Othman, N. K. Lap joints of 6061-T6 aluminium alloy were produced by friction stir welding, and the influence of welding speed on their weld quality was investigated in terms of welding defects, micro- and macrostructures, hardness distribution, and tensile properties as well as effective plate thickness (EPT) by applying the welding speed in the range 20–60 mm min–1 at constant rotation speed of 1000 rpm. The results showed that although tensile shear strength, joint efficiency, and microhardness of the weld nugget zone (WNZ) rather than the heat affected zone (HAZ), and the EPT increased with an increase in welding speed, the average grain size in the WNZ rather than the HAZ decreased. Due to increasing welding speed, the hooking and thinning defects were gradually restricted from the WNZ to the WNZ/TMAZ interface. The fracture mode within the highest tensile shear strength joints was denoted as plate separation along the hook throughout the stir zone. Slovak Academy of Sciences, Institute of Materials and Machine Mechanics 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54768/1/Mechanical%20and%20structural%20evaluation%20of%20friction%20stir%20welded%206061%20aluminium%20alloy%20lap%20joints%20at%20different%20welding%20speeds.pdf Gharavi, Farhad and Fadaeifard, Firouz and Matori, Khamirul Amin and Yunus, Robiah and Othman, N. K. (2016) Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds. Kovove Materialy-Metallic Materials, 54 (5). pp. 351-361. ISSN 0023-432X; ESSN: 1338-4252 http://www.kovmat.sav.sk/abstract.php?rr=54&cc=5&ss=351 10.4149/km 2016 5 351 |
| spellingShingle | Gharavi, Farhad Fadaeifard, Firouz Matori, Khamirul Amin Yunus, Robiah Othman, N. K. Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title | Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title_full | Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title_fullStr | Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title_full_unstemmed | Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title_short | Mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| title_sort | mechanical and structural evaluation of friction stir welded 6061 aluminium alloy lap joints at different welding speeds |
| url | http://psasir.upm.edu.my/id/eprint/54768/ http://psasir.upm.edu.my/id/eprint/54768/ http://psasir.upm.edu.my/id/eprint/54768/ http://psasir.upm.edu.my/id/eprint/54768/1/Mechanical%20and%20structural%20evaluation%20of%20friction%20stir%20welded%206061%20aluminium%20alloy%20lap%20joints%20at%20different%20welding%20speeds.pdf |