Influence of Friction Stir Welding Process on the Mechanical Characteristics of the Hybrid Joints AA2198-T8 to AA2024-T3

Figure 11

SEM morphology pictures of the fracture surface of tensile test joints. DS-FSW at (a) 36 mm/min and (b) 102 mm/min. SS-FSW at (c) 36 mm/min and (d) 76 mm/min.

(a)

(b)

(c)

(d)