Joining of aluminum alloy to steel by friction stir welding
Joining of aluminum alloy to steel by friction stir welding
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DOI：
10.1016/j.jmatprotec.2006.04.117
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发表时间：
2006-09-14
影响因子：
6.3
通讯作者：
Yanagisawa, Atsushi
中科院分区：
文献类型：
--
作者：
Watanabe, Takehiko;Takayama, Hirofumi;Yanagisawa, Atsushi
采用搅拌摩擦焊方法对铝合金板和低碳钢板进行了对接焊接，研究了搅拌头转速、搅拌头轴插入位置对接头抗拉强度和显微组织的影响。研究了焊接过程中钢的结合面氧化膜的行为。得到的主要结果如下。采用搅拌摩擦焊技术成功地实现了铝合金板与钢板的对接焊。接头的最大抗拉强度约为铝合金母材的86%。钢/铝界面上部有少量金属间化合物生成，而界面中部和底部没有金属间化合物生成。金属间化合物形成的区域似乎是接头中的断裂路径。钢的许多碎片散落在铝合金基体中，并且在钢碎片与铝合金基体之间的界面处观察到通过旋转销的摩擦运动从钢的接合表面去除的氧化膜。(c)2006 Elsevier B. V.保留所有权利。
The authors tried to butt-weld an aluminum alloy plate to a mild steel plate by friction stir welding, and investigated the effects of a pin rotation speed, the position for the pin axis to be inserted on the tensile strength and the microstructure of the joint. The behavior of the oxide film on the faying surface of the steel during welding also was examined. The main results obtained are as follows. Butt-welding of an aluminum alloy plate to a steel plate was easily and successfully achieved by friction stir welding. The maximum tensile strength of the joint was about 86% of that of the aluminum alloy base metal. A small amount of intermetallic compounds was formed at the upper part of the steel/aluminum interface, while no intermetalic compounds were observed in the middle and bottom parts of the interface. The regions where the intermetallic compounds formed seemed to be fracture paths in the joint. Many fragments of the steel were scattered in the aluminum alloy matrix and the oxide film removed from the faying surface of the steel by the rubbing motion of a rotating pin was observed at the interface between the steel fragments and the aluminum alloy matrix. (c) 2006 Elsevier B.V. All rights reserved.