Comparative Analysis on Microstructure and Mechanical Properties between EBW and TANDEM Welding of 7A52 Aluminum Alloy Joint |
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| Authors: | Zhai Xiwei Chen Furong Bi Liangyan Zhang Chuanchen College of Materials Science and Engineering Inner Mongolia University of Technology Hohhot China |
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| Affiliation: | Zhai Xiwei1,2,Chen Furong1,2,Bi Liangyan1,2,Zhang Chuanchen3 1College of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot 010051,China2Key Laboratory of Materials Processing & Control Engineering of Inner Mongolia Autonomous Region,Hohhot 010051,China3School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The plates with 20mm thickness of 7A52 aluminum alloy were welded by electron beam welding and TANDEM welding with ER5356 filler,respectively.The microstructure and mechanical properties of the joints were investigated.The results showed that the microstructure of EBW metal was finer and tighter than TANDEM welding.The heat-affected zone of the EBW joint was narrower,its hardness was higher and the tensile strength improved obviously compared to TANDEM welding.Excellent quality control of the EBW joint was made without abnormal porosity,inclusions and micro-cracks.Therefore,the EBW joint of 7A52 aluminum alloy showed excellent performance. |
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| Keywords: | 7A52 aluminum alloy electron beam welding TANDEM welding microstructure mechanical properties |
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