Effect of microstructure, texture and deformation behavior on tensile properties of electrically assisted friction stir welded Ti-6Al-4 V joints

被引：22
作者：
Han, Yang [1 ]
Chen, Shujun [1 ]
Jiang, Xiaoqing [1 ]
Bai, Yafeng [1 ]
Yuan, Tao [1 ]
Wang, Xuping [2 ]
机构：
[1] Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Forming Equipment & Syst, Beijing 100124, Peoples R China
[2] Capital Aerosp Machinery Co Ltd, Beijing, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2021年 / 176卷
基金：
中国国家自然科学基金;
关键词：
Electrically assisted friction stir welding; Texture; Deformation behavior; Tensile properties; MECHANICAL-PROPERTIES; TWINNING ACTIVITY; TITANIUM-ALLOYS; PURE TITANIUM; STRAIN; ORIENTATION; TEMPERATURE; EVOLUTION; AL;
D O I：
10.1016/j.matchar.2021.111141
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of electric current on microstructure, texture, deformation behavior and tensile properties were investigated for the electrically assisted friction stir welding process of Ti-6Al-4 V alloy. The base material has strong prismatic texture {1010} 1120 1120 a 1120 1011 twinning. The introduction of current into the welding process has resulted in the alleviation of the abrupt change of microstructure between the surface, center and bottom of the stir zone, the decrease in texture strength and more uniformly distributed strain. The improvement of tensile properties without loss of ductility for the electrically assisted joints was mainly attributed to microstructure and strain homogeneity, beta phase dissolution and random orientations.
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页数：15
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