Friction stir welding of dissimilar AA2024 and AA7075 aluminum alloys

被引：187
|
作者：
Khodir, Saad Ahmed [1 ]
Shibayanagi, Toshiya [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2008年 / 148卷 / 1-3期
关键词：
friction stir welding; 2024-T3 Al alloy; 7075-T6 Al alloy; welding speed; microstructure; mechanical properties;
D O I：
10.1016/j.mseb.2007.09.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study focuses on the microstructure and mechanical properties of dissimilar joints of 2024-T3 Al alloy to 7075-T6 Al alloy produced by friction stir welding. Effects of welding speed and fixed location of base metals on microstructures, hardness distributions, and tensile properties of the welded joints were investigated. SEM-EDS analysis revealed that the stir zone contains a mixed structure and onion ring pattern with a periodic change of grain size as well as a heterogeneous distribution of alloying elements. The maximum tensile strength of 423.0 MPa was achieved for the joint produced at welding speed of 1.67 mm/s when 2024 Al alloy was located on the advancing side. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：82 / 87
页数：6
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