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
收藏
页数：8
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