Influence of the weld thermal cycle on the grain structure of friction-stir joined 6061 aluminum alloy

被引：22

作者：

Kalinenko, Alexander ^{[1
]}

Vysotskiy, Igor ^{[1
]}

Malopheyev, Sergey ^{[1
]}

Mironov, Sergey ^{[1
]}

Kaibyshev, Rustam ^{[1
]}

机构：

[1] Belgorod Natl Res Univ, Lab Mech Properties Nanoscale Mat & Superalloys, Pobeda 85, Belgorod 308015, Russia

来源：

MATERIALS CHARACTERIZATION | 2021年 / 178卷

基金：

俄罗斯科学基金会;

关键词：

Aluminum alloys; Friction-stir welding; Weld thermal cycle; Electron backscatter diffraction (EBSD); Microstructure; Texture; MICROSTRUCTURE; EVOLUTION; CU;

D O I：

10.1016/j.matchar.2021.111202

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the relationship between the thermal cycle generated during friction-stir welding (FSW) of a 6061 aluminum alloy and the resulting grain structure was studied. To this end, FSW was conducted at measured welding temperatures from 340 to 450 degrees C and cooling rates from 15 to 70 degrees C/s, and the evolved microstructures were systematically examined using electron backscatter diffraction (EBSD). In all cases, the evolution of the grain structure was governed by continuous recrystallization. At elevated temperatures, however, a competitive recovery retarded the recrystallization kinetics.

引用

页数：10

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