Microstructure and localized corrosion properties of 2219 aluminum alloy manufactured by additive friction stir deposition

被引：4
|
作者：
Wang, Zikang [1 ,2 ,3 ]
Qian, Hongchang [1 ,2 ,3 ]
Chang, Weiwei [1 ,2 ,3 ]
Yu, Zhihao [1 ,2 ,3 ]
Qiao, Qian [4 ]
Zhou, Min [5 ]
Guo, Dawei [4 ]
Zhang, Dawei [1 ,2 ,3 ]
Kwok, Chi Tat [5 ]
Tam, Lap Mou [4 ,5 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
[3] Shunde Innovat Sch Univ Sci & Technol Beijing, BRI Southeast Asia Network Corros & Protect, Shunde Innovat Sch, MOE, Foshan 528399, Peoples R China
[4] IDQ Sci & Technol Dev Hengqin Guangdong Co Ltd, Hengqin, Guangdong, Peoples R China
[5] Univ Macau, Dept Electromech Engn, Taipa, Macao, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 240卷
关键词：
Additive friction stir deposition; Aluminum alloy; Microstructure; Corrosion; AL-CU ALLOYS; INTERGRANULAR CORROSION; MECHANICAL-PROPERTIES; BEHAVIOR; TECHNOLOGY; REFINEMENT; RESISTANCE;
D O I：
10.1016/j.corsci.2024.112508
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Multi-layer 2219 aluminum alloy samples were successfully fabricated using additive friction stir deposition (AFSD). AFSD deposition reduced grain size and the size of intermetallic Al2Cu 2 Cu particles, but greatly increased the amount of Al2Cu 2 Cu particles. More Al2Cu 2 Cu particles increased the number of galvanic microcells on alloy surface and at the grain boundaries, which promoted the localized corrosion and improved the intergranular corrosion sensitivity of AFSD alloy. Subsequent T6 heat treatment had little effect on grain size but enhanced the corrosion resistance of AFSD alloy, primarily attributed to the reduction in Al2Cu 2 Cu particles and the elimination of dislocations within grains.
引用
收藏
页数：17
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