Connection mechanism research on friction stir spot welding without keyhole between magnesium and steel dissimilar alloys

doi:10.1179/1432891714Z.000000000471

	Connection mechanism research on friction stir spot welding without keyhole between magnesium and steel dissimilar alloys
	Wang, X.J.; Li, W.H.; Zhao, G.
	2014-05-01
会议录名称	Materials Research Innovations
卷号	18
页码	S21063-S21066
出版者	Maney Publishing
摘要	A 3 mm thick AZ31B magnesium sheet is lapped by friction stir spot welding (FSSW) to a 1 mm thick DP600 galvanised steel sheet. This is carried out without any keyhole under an optimal welding condition. A good joint of 8?7 kN strength is measured. The microstructure of welding joint is analysed by optical microscope and scanning electron microscopy, showing that steel is stirred into magnesium. The phenomenon is similar to a 'nail' embedded in the magnesium, with steel and magnesium completely mixed. Beside the metal compound formed between Fe and Al element, X-ray diffraction identifies intermetallic compounds formed between Mg and Al, Mg and Zn elements. Therefore, it is concluded that magnesium steel by FSSW without keyhole is governed by a mechanical connection, followed by metallurgical combine. © 2014 W. S. Maney & Son Ltd.
关键词	Alloy steel Friction Friction stir welding Galvanizing Magnesium alloys Magnesium printing plates Microstructure Scanning electron microscopy Spot welding Stadiums Steel sheet Completely-mixed Dissimilar alloys Friction stir spot welding Galvanised steel Magnesium sheets Mechanical connections Mechanism research Optimal welding
DOI	10.1179/1432891714Z.000000000471
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000337146600202
EI入藏号	20150300420068
EI主题词	Steel metallurgy
ISSN	14328917
来源库	Compendex
分类代码	402.2 Public Buildings - 531.1 Metallurgy - 535.1 Metal Rolling - 538.2.1 Welding Processes - 539.3 Metal Plating - 542.2 Magnesium and Alloys - 745.1.1 Printing Equipment - 951 Materials Science
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117336
专题	兰州理工大学
作者单位	State Key Laboratory of Advanced Non-ferrous Materials, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Wang, X.J.,Li, W.H.,Zhao, G.. Connection mechanism research on friction stir spot welding without keyhole between magnesium and steel dissimilar alloys[C]:Maney Publishing,2014:S21063-S21066.