Electrical current treatment of 6N01 Al alloy FSW joints

被引：2

作者：

Liang, Zhimin ^{[1
]}

Wang, Guanying ^{[1
]}

Huang, Yongxian ^{[2
]}

Peng, Zhenzhen ^{[1
]}

Liang, Yongmei ^{[1
]}

Wang, Dianlong ^{[1
]}

Wang, Liwei ^{[1
]}

机构：

[1] Hebei Univ Sci & Technol, Sch Mat Sci & Engn, Hebei Key Lab Mat Near Net Forming Technol, Shijiazhuang 050018, Peoples R China

[2] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2023年 / 868卷

基金：

中国国家自然科学基金;

关键词：

Electric current treatment; Electropulsing solution; Direct -current aging; Al alloy joints; Mechanical properties; Precipitates; ZN-MG ALLOY; MECHANICAL-PROPERTIES; HEAT-TREATMENT; DIFFRACTION PATTERNS; ALUMINUM-ALLOY; MICROSTRUCTURE; EVOLUTION; PHASE;

D O I：

10.1016/j.msea.2023.144785

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Studies successfully exploit electric current treatment including electropulsing solution and direct-current (DC) aging to thoroughly substitute post-weld heat treatment and realize artificial controlling of precipitation as well as the improvement of mechanical property in 6N01 Al alloy friction-stir-welding (FSW) joints. Utilizing electropulsing solution, & beta;' can be dissolved completely within 3 s to form super-saturated solid solution. The subsequent DC two-stage aging promotes the formation of high-density & beta;" within 5 h and increases the microhardness by 21.8% and strength by about 15%. This study extends perspectives on post-weld treatment of precipitation-hardening Al alloy joints and expand the potential function of artificial controlling of precipitation.

引用

页数：8

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