Microstructures and mechanical properties of magnesium alloy and stainless steel weld-joint made by friction stir lap welding
Microstructures and mechanical properties of magnesium alloy and stainless steel weld-joint made by friction stir lap welding
复制标题
镁合金与不锈钢搅拌摩擦搭接焊缝的显微组织与力学性能
DOI：
10.1016/j.matdes.2011.07.016
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Zhang, Fusheng
中科院分区：
文献类型：
--
作者：
Wei, Yanni;Li, Jinglong;Xiong, Jiangtao;Huang, Fu;Zhang, Fusheng
对软/硬金属进行了搅拌摩擦搭接焊。设计了一种采用碳化钨旋转毛刺切割针的焊接工具，使搅拌针能够穿透和切割硬质合金表层。选用镁合金AZ31和不锈钢SUS302作为软/硬母材。用扫描电子显微镜(SEM)分析了连接界面的结构。通过拉剪试验对连接强度进行评价。结果表明，复合材料的界面形态呈花朵状，以钢片和碎屑为主，形成了长时间闪钢钉子效应、锯齿状组织拉链效应和冶金结合的结合机制。搭接接头的剪切强度落在搅拌摩擦焊对接接头的剪切强度附近。
Friction stir lap welding was conducted on soft/hard metals. A welding tool was designed with a cutting pin of rotary burr made of tungsten carbide, which makes the stirring pin possible to penetrate and cut the surface layer of the hard metal. Magnesium alloy AZ31 and stainless steel SUS302 were chosen as soft/hard base metals. The structures of the joining interface were analyzed by scanning electron microscopy (SEM). The joining strength was evaluated by tensile shear test. The results showed that flower-like interfacial morphologies were presented with steel flashes and scraps, which formed bonding mechanisms of nail effect by long steel flashes, zipper effect by saw-tooth structure and metallurgical bonding. The shear strength of the lap joint falls around the shear strength of butt joint of friction stir welded magnesium alloy.
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影响因子：
6.2
作者：
Saeid, T.;Abdollah-zadeh, A.;Sazgari, B.
通讯作者：
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影响因子：
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作者：
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作者：
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