Effect of tool geometry on microstructure and mechanical properties of friction stir lap welded magnesium alloy and steel

被引：163
作者：
Chen, Y. C. [1 ]
Nakata, K. [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
来源：
MATERIALS & DESIGN | 2009年 / 30卷 / 09期
关键词：
ALUMINUM-ALLOYS; STAINLESS-STEEL; CARBON-STEEL; EVOLUTION; TEXTURE;
D O I：
10.1016/j.matdes.2009.03.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of tool geometry on microstructure and mechanical properties of friction stir lap welded AZ31 Mg alloy (top sheet) and steel (zinc coated steel and brushed finish steel) sheets was studied. Tools with two different probe lengths were used in this study. The microstructure at the joining interface, the failure loads and the fracture locations of the joints varied significantly with the probe length. For zinc coated steel joints, the short probe contributed to defect-free joints and high-strength joints; for brushed finish steel joints, long probe improved significantly the failure loads of the joints. The joints welded using a long probe fractured at the stir zone of magnesium alloy side while those welded using short probe fractured at the joining interface. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3913 / 3919
页数：7
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