Characteristics of defects and tensile behaviors on friction stir welded AA6061-T4 T-joints

被引：76

作者：

Cui, Lei ^{[1
]}

Yang, Xinqi ^{[1
]}

Zhou, Guang ^{[1
]}

Xu, Xiaodong ^{[1
]}

Shen, Zhikang ^{[1
]}

机构：

[1] Tianjin Univ, Tianjin Key Lab Adv Joining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 543卷

关键词：

Friction stir welding; 6061-T4 aluminum alloy; T-joints; Defects; Tensile behaviors; ALUMINUM-ALLOYS; MECHANICAL-BEHAVIOR; MATERIAL FLOW; KISSING-BOND; OXIDE ARRAY; FSW; SIMULATION; EVOLUTION;

D O I：

10.1016/j.msea.2012.02.045

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present study, AA6061-14 T-joints were successfully fabricated by friction stir welding (FSW) in three different combination ways of skins and stringers. Distributions and formation mechanisms of tunnel defects, kissing bond defects, original joint line with severe plastic deformation (OJLwSPD) defects, and zigzag line defects in T-joints were investigated by macro- and micro-observations. Influences of defects distributions and welding parameters on the tensile behaviors of T-joints were examined. To a better understanding of failure behaviors of T-joints, fracture locations and fracture surfaces of tensile samples were also investigated. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：58 / 68

页数：11

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