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Improving Joint Morphologies and Tensile Strength of Al/Mg Dissimilar Alloys Friction Stir Lap Welding by Changing Zn Interlayer Thickness
Jinglin Liu1; Shiyu Niu1; Rong Ren1; Shude Ji1; Lei Wang2; Zan Lv1
2019
Source Publication金属学报:英文版
ISSN1006-7191
Volume32.0Issue:011Pages:1385-1395
AbstractThe pure Zn foils with different thicknesses(0.02, 0.05, 0.1, 0.2 and 0.3 mm) were selected as interlayers to improve the quality of friction stir lap welding joint of 7075-T6 Al and AZ31 B Mg dissimilar alloys. The effects of the interlayer thickness on joint formation, microstructure and tensile strength were analyzed. The results displayed that the maximum length of the boundary between stir zone(SZ) and thermo-mechanically affected zone in lower plate was obtained by the addition of the Zn interlayer with 0.05 mm thickness. The Mg–Zn intermetallic compounds(IMCs) were discontinuously distributed in the SZ, replacing the continuous Al–Mg IMCs. The size of Mg–Zn IMCs increased with the increase in the thickness of the Zn interlayer. The maximum tensile shear strength of 276 N mm-1 was obtained by the addition of 0.05 mm Zn foil, which increased by 45.6% of that of the joint without the Zn foil addition.
KeywordAl/Mg dissimilar alloys Friction stir lap welding Zn foil thickness Microstructure Tensile shear strength
Indexed ByCSCD
Language中文
Funding Project[National Natural Science Foundation of China]
CSCD IDCSCD:6613339
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156223
Collection中国科学院金属研究所
Affiliation1.College of Aerospace Engineering,Shenyang Aerospace University
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Jinglin Liu,Shiyu Niu,Rong Ren,et al. Improving Joint Morphologies and Tensile Strength of Al/Mg Dissimilar Alloys Friction Stir Lap Welding by Changing Zn Interlayer Thickness[J]. 金属学报:英文版,2019,32.0(011):1385-1395.
APA Jinglin Liu,Shiyu Niu,Rong Ren,Shude Ji,Lei Wang,&Zan Lv.(2019).Improving Joint Morphologies and Tensile Strength of Al/Mg Dissimilar Alloys Friction Stir Lap Welding by Changing Zn Interlayer Thickness.金属学报:英文版,32.0(011),1385-1395.
MLA Jinglin Liu,et al."Improving Joint Morphologies and Tensile Strength of Al/Mg Dissimilar Alloys Friction Stir Lap Welding by Changing Zn Interlayer Thickness".金属学报:英文版 32.0.011(2019):1385-1395.
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