Microstructure and anisotropic mechanical behavior of friction stir welded AA2024 alloy sheets

被引：27

作者：

Zhang, Zhihan ^{[1
]}

Li, Wenya ^{[1
]}

Li, Jinglong ^{[1
]}

Chao, Y. J. ^{[2
]}

Vairis, A. ^{[3
]}

机构：

[1] Northwestern Polytech Univ, Shaanxi Key Lab Frict Welding Technol, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China

[2] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

[3] TEl Crete, Dept Mech Engn, Iraklion 71004, Crete, Greece

来源：

MATERIALS CHARACTERIZATION | 2015年 / 107卷

关键词：

Friction stir welding; Aluminum alloy; Microstructure; Anisotropic mechanical property; HIGH-TENSILE DUCTILITY; ALUMINUM-ALLOYS; PLASTIC-DEFORMATION; YIELD SURFACES; MG ALLOYS; PRECIPITATION; TEXTURE; PREDICTION; STRENGTH; CU;

D O I：

10.1016/j.matchar.2015.06.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The anisotropic mechanical properties of friction stir welded (FSW) AA2024-T3 alloy joints were investigated based on the uniaxial tensile tests. The joint microstructure was examined by using electron back-scattered diffraction and transmission electron microscope. Results show that the evident anisotropic failure and yielding are present in the FSW joints. With the increase of loading angle from 0 degrees to 90 degrees the ultimate tensile strength and elongation of the specimens consistently decrease, or at first decrease and then increase, depending on the FSW process parameters. The specimen cut from the weld direction, i.e. a loading angle of 0 degrees, exhibits the highest strength and elongation. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：112 / 118

页数：7

共 36 条

[1] A 6-COMPONENT YIELD FUNCTION FOR ANISOTROPIC MATERIALS [J].