| Influencing mechanism of Al-containing Zn coating on interfacial microstructure and mechanical properties of friction stir spot welded Mg-steel joint | |
| Xu, R. Z.1,2; Ni, D. R.1; Yang, Q.1; Xiao, B. L.1; Liu, C. Z.2; Ma, Z. Y.1 | |
| Corresponding Author | Ma, Z. Y.(zyma@imr.ac.cn) |
| 2018-06-01 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 140Pages:197-206 |
| Abstract | 2.4 mm thick AZ31 Mg alloy sheet and 1.5 mm Q234 steel sheet with a hot-dipped Al-containing Zn coating were friction stir spot welded (FSSW) using a pinless tool. It was shown that the Al-containing Zn coating played a crucial role in joining the Mg alloy and steel during FSSW. The Zn coating observably improved the Mg steel interfacial wettability during FSSW, and the Al5Fe2 phase in the Zn coating on the steel substrate surface promoted the metallurgical bonding of Mg alloy and steel. It was confirmed that the Al5Fe2 phase on the steel surface resulted from the reaction between the steel substrate and the Al in the Zn coating during hot-dipping, and was not related to the Al-containing Mg alloy substrate. The tensile-shear load of the FSSW Mg steel joint reached 4.3 kN. The fracture of the joint occurred along the interface on the steel substrate side. The interface between the Al5Fe2 layer and Mg alloy substrate was the weakest region of the Mg steel joint. |
| Keyword | Friction stir spot welding Dissimilar metals Zn-Al coating Intermetallic compound Metallurgical bonding |
| Funding Organization | National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province Program |
| DOI | 10.1016/j.matchar.2018.04.011 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51601121] ; National Natural Science Foundation of China[51331008] ; Natural Science Foundation of Liaoning Province Program[L201624] ; Natural Science Foundation of Liaoning Province Program[201602570] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000433272800022 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/128268 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ma, Z. Y. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Shenyang Aerosp Univ, Coll Mat Sci & Engn, 37 Daoyi South St, Shenyang 110136, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, R. Z.,Ni, D. R.,Yang, Q.,et al. Influencing mechanism of Al-containing Zn coating on interfacial microstructure and mechanical properties of friction stir spot welded Mg-steel joint[J]. MATERIALS CHARACTERIZATION,2018,140:197-206. |
| APA | Xu, R. Z.,Ni, D. R.,Yang, Q.,Xiao, B. L.,Liu, C. Z.,&Ma, Z. Y..(2018).Influencing mechanism of Al-containing Zn coating on interfacial microstructure and mechanical properties of friction stir spot welded Mg-steel joint.MATERIALS CHARACTERIZATION,140,197-206. |
| MLA | Xu, R. Z.,et al."Influencing mechanism of Al-containing Zn coating on interfacial microstructure and mechanical properties of friction stir spot welded Mg-steel joint".MATERIALS CHARACTERIZATION 140(2018):197-206. |
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