Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints
The softening phenomenon of age-hardening aluminum alloy-welded joints is severe during conventional fusion welding, which increases the likelihood of stress and strain concentration in the joint during the period of service, significantly reduces the mechanical properties compared to the base metal...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/19/5804 |
| _version_ | 1797516081359749120 |
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| author | Jiwen Cheng Gang Song Xiaosheng Zhang Chunbai Liu Liming Liu |
| author_facet | Jiwen Cheng Gang Song Xiaosheng Zhang Chunbai Liu Liming Liu |
| author_sort | Jiwen Cheng |
| collection | DOAJ |
| description | The softening phenomenon of age-hardening aluminum alloy-welded joints is severe during conventional fusion welding, which increases the likelihood of stress and strain concentration in the joint during the period of service, significantly reduces the mechanical properties compared to the base metal, and represents an obstacle to the exploration of the potential structural performance. This review paper focuses on an overview of the softening phenomenon. Firstly, the welding softening mechanism and the characteristics of age-hardening aluminum alloys are clarified. Secondly, the current main research methods that can effectively improve joint softening are summarized into three categories: low-heat-input welding, externally assisted cooling during welding, and post-weld treatment. The strengthening mechanism and performance change rule of age-hardening aluminum alloy joints are systematically analyzed. Finally, this paper considers the future development trends of further research on joint softening, and it is expected that interest in this topic will increase. |
| first_indexed | 2024-03-10T06:56:17Z |
| format | Article |
| id | doaj.art-bdb9bdfdadbe464fa49b9717a6c35133 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:56:17Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-bdb9bdfdadbe464fa49b9717a6c351332023-11-22T16:27:26ZengMDPI AGMaterials1996-19442021-10-011419580410.3390/ma14195804Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded JointsJiwen Cheng0Gang Song1Xiaosheng Zhang2Chunbai Liu3Liming Liu4Key Laboratory of Liaoning Advanced Welding and Joining Technology, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, ChinaKey Laboratory of Liaoning Advanced Welding and Joining Technology, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, ChinaChina FAW Group Co., Ltd, Manufacturing Engineering & Logistics Department, Changchun 130011, ChinaChina FAW Group Co., Ltd, Manufacturing Engineering & Logistics Department, Changchun 130011, ChinaKey Laboratory of Liaoning Advanced Welding and Joining Technology, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, ChinaThe softening phenomenon of age-hardening aluminum alloy-welded joints is severe during conventional fusion welding, which increases the likelihood of stress and strain concentration in the joint during the period of service, significantly reduces the mechanical properties compared to the base metal, and represents an obstacle to the exploration of the potential structural performance. This review paper focuses on an overview of the softening phenomenon. Firstly, the welding softening mechanism and the characteristics of age-hardening aluminum alloys are clarified. Secondly, the current main research methods that can effectively improve joint softening are summarized into three categories: low-heat-input welding, externally assisted cooling during welding, and post-weld treatment. The strengthening mechanism and performance change rule of age-hardening aluminum alloy joints are systematically analyzed. Finally, this paper considers the future development trends of further research on joint softening, and it is expected that interest in this topic will increase.https://www.mdpi.com/1996-1944/14/19/5804age-hardening aluminum alloysjoint softeninglow-heat-input weldingexternally assisted cooling during weldingpost-weld treatment |
| spellingShingle | Jiwen Cheng Gang Song Xiaosheng Zhang Chunbai Liu Liming Liu Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints Materials age-hardening aluminum alloys joint softening low-heat-input welding externally assisted cooling during welding post-weld treatment |
| title | Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
| title_full | Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
| title_fullStr | Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
| title_full_unstemmed | Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
| title_short | Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
| title_sort | review of techniques for improvement of softening behavior of age hardening aluminum alloy welded joints |
| topic | age-hardening aluminum alloys joint softening low-heat-input welding externally assisted cooling during welding post-weld treatment |
| url | https://www.mdpi.com/1996-1944/14/19/5804 |
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