| Effect of Laser Power on Microstructure and Micro-Galvanic Corrosion Behavior of a 6061-T6 Aluminum Alloy Welding Joints | |
| Zhou, Huiling1; Fu, Fanglian1; Dai, Zhixin2; Qiao, Yanxin1; Chen, Jian1,3; Liu, Wen1 | |
| Corresponding Author | Qiao, Yanxin(yxqiao@just.edu.cn) ; Chen, Jian(jchen496@uwo.ca) |
| 2021 | |
| Source Publication | METALS
 |
| Volume | 11Issue:1Pages:8 |
| Abstract | The 6061-T6 aluminum alloy welding joints were fabricated using gas metal arc welding (GMAW) of various laser powers, and the effect of laser power on the microstructure evolution of the welding joints was investigated. The corrosion behaviors of 6061-T6 aluminum alloy welding joints were investigated in 3.5 wt% NaCl solution using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The results showed that the micro-galvanic corrosion initiation from Mg2Si or around the intermetallic particles (Al-Fe-Si) is observed after the immersion test due to the inhomogeneous nature of the microstructure. The preferential dissolution of the Mg2Si and Al-Fe-Si is believed to be the possible cause of pitting corrosion. When the laser power reached 5 kW, the microstructure of the welded joint mainly consisted of Al-Fe-Si rather than the Mg2Si at 2 kW. The relatively higher content of Al-Fe-Si with increasing in laser power would increase the volume of corrosion pits. |
| Keyword | 6061 aluminum alloy welding micro-galvanic corrosion intermetallic particles |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.3390/met11010003 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51975263] ; National Natural Science Foundation of China[51575252] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000610490500001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/159018 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Qiao, Yanxin; Chen, Jian |
| Affiliation | 1.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Western Ontario, Dept Chem & Surface Sci Western, London, ON N6A 5B7, Canada |
| Recommended Citation GB/T 7714 | Zhou, Huiling,Fu, Fanglian,Dai, Zhixin,et al. Effect of Laser Power on Microstructure and Micro-Galvanic Corrosion Behavior of a 6061-T6 Aluminum Alloy Welding Joints[J]. METALS,2021,11(1):8. |
| APA | Zhou, Huiling,Fu, Fanglian,Dai, Zhixin,Qiao, Yanxin,Chen, Jian,&Liu, Wen.(2021).Effect of Laser Power on Microstructure and Micro-Galvanic Corrosion Behavior of a 6061-T6 Aluminum Alloy Welding Joints.METALS,11(1),8. |
| MLA | Zhou, Huiling,et al."Effect of Laser Power on Microstructure and Micro-Galvanic Corrosion Behavior of a 6061-T6 Aluminum Alloy Welding Joints".METALS 11.1(2021):8. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment