Cargando…
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...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8510448/ https://www.ncbi.nlm.nih.gov/pubmed/34640203 http://dx.doi.org/10.3390/ma14195804 |
_version_ | 1784582574747680768 |
---|---|
author | Cheng, Jiwen Song, Gang Zhang, Xiaosheng Liu, Chunbai Liu, Liming |
author_facet | Cheng, Jiwen Song, Gang Zhang, Xiaosheng Liu, Chunbai Liu, Liming |
author_sort | Cheng, Jiwen |
collection | PubMed |
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. |
format | Online Article Text |
id | pubmed-8510448 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85104482021-10-13 Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints Cheng, Jiwen Song, Gang Zhang, Xiaosheng Liu, Chunbai Liu, Liming Materials (Basel) Review 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. MDPI 2021-10-04 /pmc/articles/PMC8510448/ /pubmed/34640203 http://dx.doi.org/10.3390/ma14195804 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Cheng, Jiwen Song, Gang Zhang, Xiaosheng Liu, Chunbai Liu, Liming Review of Techniques for Improvement of Softening Behavior of Age-Hardening Aluminum Alloy Welded Joints |
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 | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8510448/ https://www.ncbi.nlm.nih.gov/pubmed/34640203 http://dx.doi.org/10.3390/ma14195804 |
work_keys_str_mv | AT chengjiwen reviewoftechniquesforimprovementofsofteningbehaviorofagehardeningaluminumalloyweldedjoints AT songgang reviewoftechniquesforimprovementofsofteningbehaviorofagehardeningaluminumalloyweldedjoints AT zhangxiaosheng reviewoftechniquesforimprovementofsofteningbehaviorofagehardeningaluminumalloyweldedjoints AT liuchunbai reviewoftechniquesforimprovementofsofteningbehaviorofagehardeningaluminumalloyweldedjoints AT liuliming reviewoftechniquesforimprovementofsofteningbehaviorofagehardeningaluminumalloyweldedjoints |