Research Article

Effect of Traverse Speed on the Defect Characteristic, Microstructure, and Mechanical Property of Friction Stir Welded T-Joints of Dissimilar Mg/Al Alloy

Figure 9

Morphology of cold lap and hook defects at different traverse speeds: (a) and (b) 15 mm/min; (c) and (d) 30 mm/min; (e) and (f) 50 mm/min; (g) and (h) 65 mm/min.