Influencing mechanism of Al-containing Zn coating on interfacial microstructure and mechanical properties of friction stir spot welded Mg-steel joint | |
Xu, RZ; Ni, DR; Yang, Q; Xiao, BL; Liu, CZ; Ma, ZY | |
刊名 | MATERIALS CHARACTERIZATION |
2018-06-01 | |
卷号 | 140页码:197-206 |
关键词 | Friction stir spot welding Dissimilar metals Zn-Al coating Intermetallic compound Metallurgical bonding |
ISSN号 | 1044-5803 |
DOI | 10.1016/j.matchar.2018.04.011 |
英文摘要 | 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. |
学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
语种 | 英语 |
WOS记录号 | WOS:000433272800022 |
内容类型 | 期刊论文 |
源URL | [http://ir.imr.ac.cn/handle/321006/80173] |
专题 | 金属研究所_中国科学院金属研究所 |
作者单位 | 1.[Xu, R. Z. 2.Ni, D. R. 3.Yang, Q. 4.Xiao, B. L. 5.Ma, Z. Y.] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.[Xu, R. Z. 7.Liu, C. Z.] Shenyang Aerosp Univ, Coll Mat Sci & Engn, 37 Daoyi South St, Shenyang 110136, Liaoning, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, RZ,Ni, DR,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, RZ,Ni, DR,Yang, Q,Xiao, BL,Liu, CZ,&Ma, ZY.(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, RZ,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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