Structure and Properties of a Permanent Joint of Ti-6Al-4V Titanium Alloy Formed by Friction Stir Welding

被引：0
作者：
A. V. Chumaevskii
A. I. Amirov
E. N. Moskvichev
A. N. Ivanov
E. A. Kolubaev
机构：
[1] Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences,
来源：
Russian Physics Journal | 2022年 / 65卷
关键词：
friction stir welding; titanium alloy; mechanical properties; fractography;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Permanent joints are successfully formed by butt friction stir welding of rolled sheets made of Ti-6Al-4V titanium alloy, using a tool made of a heat-resistant alloy based on nickel ZhS6U with liquid cooling in the welding process. It is revealed by the methods of metallographic analysis that the fragments of the welding tool material in the stirring zone get dissolved. A fractographic analysis of the fracture surfaces demonstrates that the fracture in the joint zone is ductile, while in the areas with the tool material fragments it is brittle. By varying the friction stir welding parameters a permanent joint is formed, whose strength competes with that of the base metal.
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页码：765 / 770
页数：5
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