Effect of the Surface State of Steel on the Microstructure and Mechanical Properties of Dissimilar Metal Lap Joints of Aluminum and Steel by Friction Stir Welding
Effect of the Surface State of Steel on the Microstructure and Mechanical Properties of Dissimilar Metal Lap Joints of Aluminum and Steel by Friction Stir Welding
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DOI：
10.1007/s11661-008-9523-4
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发表时间：
2008-05
期刊：
影响因子：
--
通讯作者：
Y. Chen;K. Nakata
中科院分区：
文献类型：
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作者：
Y. Chen;K. Nakata
当摩擦搅拌焊接工具不接触下钢表面时，产生AC4C Al合金（顶部片材）和钢（镀锌钢、刷光钢和镜面钢）的摩擦搅拌搭接接头。对于镀锌钢，接头强度可达钢的97.7%，对于刷光钢，接头强度为钢的63.2%，对于镜面钢，铝合金与钢不能焊接。研究了钢表面状态对AC4C铝合金与钢异种搅拌摩擦搭接接头组织和力学性能的影响。
Friction stir lap joints of AC4C Al alloy (top sheet) and steel (zinc-coated steel, brushed finish steel, and mirror finish steel) were produced when the friction stir welding tool did not touch the lower steel surface. For zinc coat steel, the strength of joints could reach 97.7 pct of that of steel; for brushed finish steel, the strength was 63.2 pct of that of steel; for mirror finish steel, Al alloy and steel could not be welded. The effect of the surface state of steel on the microstructure and mechanical properties of dissimilar metal friction stir lap joints of AC4C Al alloy and steel was discussed.