Dissimilar Al/Mg alloys friction stir lap welding with Zn foil assisted by ultrasonic
查看参考文献30篇
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文摘
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The Zn-added ultrasonic assisted friction stir lap welding (UaFSLW) was carried out to improve the quality of dissimilar Al/Mg alloys joint. The effects of ultrasonic power on the joint quality were also investigated. The results indicated that the larger effective lap width and mixing region between Mg and Al (Mg/Al MR) were attained by Zn foil addition and external ultrasonic assistance. Compared with the conventional joint, the finer and better-distributed Mg-Zn IMCs placing the continuous Al-Mg IMCs were formed in the Mg/Al MR of the Zn-added UaFSLW joint. The Zn foil addition and external ultrasonic assistance significantly improved the tensile shear load of the joint, and the load was increased with the increase of the ultrasonic power. The maximum tensile shear load of 7.95 kN was attained, which was 52.6% larger than that of the conventional joint. |
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来源
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Journal of Materials Science & Technology
,2019,35(8):1712-1718 【核心库】
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DOI
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10.1016/j.jmst.2019.03.033
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关键词
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Dissimilar Al/Mg alloys
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Friction stir lap welding
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Zn foil
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Ultrasonic power
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Microstructures
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Tensile shear load
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地址
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1.
School of Aerospace Engineering, Shenyang Aerospace University, Shenyang, 110136
2.
Beijing Aeronautical Science & Technology Research Institute of COMAC, Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, Beijing, 102211
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-0302 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:6568340
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