Refill friction stir spot welding of 5083-O aluminum alloy
查看参考文献32篇
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文摘
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In this work, refill friction stir spot welding (RFSSW) was used to weld 2 mm-thick 5083-O alloy. The Box–Behnken experimental design was used to investigate the effect of welding parameters on the joint lap shear property. Resultsshowedthat a surface indentation of 0.3mmeffectively eliminated the welding defects. Microhardness of the stir zone (SZ) was higher than that of the base material (BM) and the hardness decreased with increasing the heat input during welding. The optimum failure load of 7.72kN was obtained when using rotating speed of 2300 rpm, plunge depth of 2.4mm and refilling time of 3.5 s. Three fracture modes were obtained during the lap shear test and all were affected by the hook defect. |
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来源
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Journal of Materials Science & Technology
,2018,34(5):878-885 【核心库】
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DOI
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10.1016/j.jmst.2017.02.011
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关键词
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Refill friction stir spot welding
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Keyhole
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Secondary phases
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Microhardness
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Lap shear failure load
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地址
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1.
Harbin Institute of Technology, State Key Laboratory of Advanced Welding and Joining, Harbin, 150001
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Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang, 110136
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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:6240463
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