Microstructure Evolution and Mechanical Properties of 2219 Aluminum Alloy A-TIG Welds

被引：8

作者：

Ahmadi, E. ^{[1
]}

Ebrahimi, A. R. ^{[2
]}

Hoseinzadeh, A. ^{[3
]}

机构：

[1] Iran Univ Sci & Technol, Sch Met & Mat Engn, Tehran, Iran

[2] Amirkabir Univ Technol, Min & Met Engn Dept, Tehran, Iran

[3] Sahand Univ Technol, Mat Engn Dept, Tabriz, Iran

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2020年 / 121卷 / 05期

关键词：

2219 aluminum alloy; activating flux; weld penetration; TIG welding; FLUXES; STEEL;

D O I：

10.1134/S0031918X20050026

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effects of three activating fluxes, SiO2, TiO2, and MoO3, in tungsten inert gas (TIG) welding process on penetration, morphology, and mechanical properties of weld joint were investigated by bead on plate welding on 2219 aluminum alloy. Experimental results showed that a noticeable increase in the weld penetration and depth to with ratio was obtained by using activating fluxes. Among all the activating fluxes used in this study, the maximum penetration was achieved in case of SiO(2)flux. The microstructure analysis demonstrated that oxide fluxes can promote transition from columnar to equiaxed grain growth in the fusion zone. It is also found that A-TIG weldments exhibit superior mechanical properties including tensile strength and hardness than those of TIG welding without flux.

引用

页码：483 / 488

页数：6

共 18 条

[1] Welding of 316L Austenitic Stainless Steel with Activated Tungsten Inert Gas Process [J].