Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy
In this study, the effect of heat input on the mechanical properties and fracture behaviors of AZ61 magnesium alloy joints has been studied. Magnesium alloy AZ61 plates with thickness of 5 mm were welded at different ratios of tool rotational speed to welding speed (ω/ν). The average ultimate tensil...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/7381403 |
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| author | Seung-Ju Sun Jung-Seok Kim Woo Geun Lee Jae-Yong Lim Yohan Go Young Min Kim |
| author_facet | Seung-Ju Sun Jung-Seok Kim Woo Geun Lee Jae-Yong Lim Yohan Go Young Min Kim |
| author_sort | Seung-Ju Sun |
| collection | DOAJ |
| description | In this study, the effect of heat input on the mechanical properties and fracture behaviors of AZ61 magnesium alloy joints has been studied. Magnesium alloy AZ61 plates with thickness of 5 mm were welded at different ratios of tool rotational speed to welding speed (ω/ν). The average ultimate tensile strength of all weld conditions satisfying a ω/ν ratio of 3 reached 100% of the strength of the base material. Fractures occurred at the interface between the thermomechanical affected zone at advancing side and the stir zone in all welded specimens. From the scanning electron microscope and electron backscatter diffraction analysis, it was determined that the interface between the thermomechanical affected zone and the stir zone, which is the region where the grain orientation changes, was the weakest part; the advancing side region was relatively weaker than the retreating side region because the grain orientation change occurred more dramatically in the advancing side region. |
| format | Article |
| id | doaj-art-5b362da5a73b4ee9be40b2379440eebd |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5b362da5a73b4ee9be40b2379440eebd2025-08-20T02:05:13ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/73814037381403Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium AlloySeung-Ju Sun0Jung-Seok Kim1Woo Geun Lee2Jae-Yong Lim3Yohan Go4Young Min Kim5New Transportation Systems Research Center, Korea Railroad Research Institute, Uiwang, Republic of KoreaNew Transportation Systems Research Center, Korea Railroad Research Institute, Uiwang, Republic of KoreaNew Transportation Systems Research Center, Korea Railroad Research Institute, Uiwang, Republic of KoreaSchool of Mechanical Engineering, Daegu University, Gyeongsan, Republic of KoreaAdvanced Materials Engineering, University of Science and Technology, Daejeon, Republic of KoreaAdvanced Materials Engineering, University of Science and Technology, Daejeon, Republic of KoreaIn this study, the effect of heat input on the mechanical properties and fracture behaviors of AZ61 magnesium alloy joints has been studied. Magnesium alloy AZ61 plates with thickness of 5 mm were welded at different ratios of tool rotational speed to welding speed (ω/ν). The average ultimate tensile strength of all weld conditions satisfying a ω/ν ratio of 3 reached 100% of the strength of the base material. Fractures occurred at the interface between the thermomechanical affected zone at advancing side and the stir zone in all welded specimens. From the scanning electron microscope and electron backscatter diffraction analysis, it was determined that the interface between the thermomechanical affected zone and the stir zone, which is the region where the grain orientation changes, was the weakest part; the advancing side region was relatively weaker than the retreating side region because the grain orientation change occurred more dramatically in the advancing side region.http://dx.doi.org/10.1155/2017/7381403 |
| spellingShingle | Seung-Ju Sun Jung-Seok Kim Woo Geun Lee Jae-Yong Lim Yohan Go Young Min Kim Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy Advances in Materials Science and Engineering |
| title | Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy |
| title_full | Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy |
| title_fullStr | Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy |
| title_full_unstemmed | Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy |
| title_short | Influence of Friction Stir Welding on Mechanical Properties of Butt Joints of AZ61 Magnesium Alloy |
| title_sort | influence of friction stir welding on mechanical properties of butt joints of az61 magnesium alloy |
| url | http://dx.doi.org/10.1155/2017/7381403 |
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