Process parameter influence on defects and tensile properties of friction stir welded T-joints on AA6061-T4 sheets

被引：41
作者：
Cui, Lei [1 ]
Yang, Xinqi [1 ]
Xie, Yonghui [1 ]
Hou, Xiaopeng [1 ]
Song, Youbao [1 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China
来源：
MATERIALS & DESIGN | 2013年 / 51卷
关键词：
Friction stir welding; Aluminum alloy T-joints; Defects; Microstructures; Tensile behaviors; STRENGTH ALUMINUM-ALLOYS; AL-MG-SI; MECHANICAL-PROPERTIES; MATERIAL FLOW; KISSING-BOND; MICROSTRUCTURE; FSW; RECRYSTALLIZATION; PRECIPITATION; GEOMETRY;
D O I：
10.1016/j.matdes.2013.04.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, AA6061-T4 T-joints characterized by combination modes of T-lap and T-butt were fabricated by friction stir welding with different processing parameters. Defects distributed in the obtained specimens were examined by using a stereo microscope and an optical microscope. Process parameter influence on the distribution and the size of original joint line with severe deformation (OJLwSD) defect was investigated. The microstructures and hardness profiles in the T-joints were studied. Influence factors on T-joints' tensile properties were discussed. In addition, the fracture mode and the fracture surface of the failure samples were observed and discussed as well. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：161 / 174
页数：14
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