Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)

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Effect of friction stir welding on mechanical properties and fracture mechanism of 7B52 Al laminated composite

Authors
Yushan Chen, Qi Zhou, Hao Xia, Hongyu Sun, Xinrui Ma, Shubiao Qiu, Chongbin Tang
Corresponding Author
Yushan Chen
Available Online February 2018.
DOI
10.2991/icmea-17.2018.19How to use a DOI?
Keywords
friction stir welding; laminated composite; microhardness; tensile properties; impact properties
Abstract

Aluminum laminated composite (ALC) is a new type of structural material with a broad application space and development prospects. Due to the laminated structure, the mechanical properties and failure patterns of ALCs differ significantly from those of uniform materials. The friction stir welding (FSW) of Al alloy can effectively avoid many defects caused by fusion welding, but the FSW of ALCs is in its infancy stage. Friction stir welding experiment of 7B52 ALC was carried out in this study. The Vickers hardness test, tensile test and impact test were performed on the specimens of the joint and base metal to analyze the effect of friction stir welding on microhardness, tensile properties and impact properties. The fracture surfaces were observed by SEM to investigate the fracture mechanism. A defect free weld was obtained. However, the laminated structure was destroyed, resulting in the decrease of microhardness and tensile strength. The microstructure of the weld was improved, significantly increasing the impact toughness.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
Series
Advances in Engineering Research
Publication Date
February 2018
ISBN
978-94-6252-448-4
ISSN
2352-5401
DOI
10.2991/icmea-17.2018.19How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Yushan Chen
AU  - Qi Zhou
AU  - Hao Xia
AU  - Hongyu Sun
AU  - Xinrui Ma
AU  - Shubiao Qiu
AU  - Chongbin Tang
PY  - 2018/02
DA  - 2018/02
TI  - Effect of friction stir welding on mechanical properties and fracture mechanism of 7B52 Al laminated composite
BT  - Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
PB  - Atlantis Press
SP  - 80
EP  - 86
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-17.2018.19
DO  - 10.2991/icmea-17.2018.19
ID  - Chen2018/02
ER  -