Formation of al-zn-cu-mg alloy joint structure under friction stir welding with additional liquid cooling and subsequent artificial aging

期刊论文
发表日期：

2024年11月1日

查看全文

E. A. Sidorov,
A. V. Chumaevskii,
V. E. Rubtsov,
T. E. Alushkin,
A. V. Zubritsky,
D. A. Gurianov,
S. V. Fortuna,
E. A. Kolubaev

摘要

The structure characteristics and the formation of properties of high-strength aluminum alloy 7075 are studied during friction stir welding of 3 mm thick plates. A possibility of forming a high-quality, permanent joint by the implementation of supplementary liquid cooling techniques during the welding process is shown. The tensile strength of the samples welded with water cooling is observed to exceed the base metal strength by 0.9 times. In the case of post-treatment aging, the strength of the welds is found to exceed that of the base metal.