Enhancement of Mechanical Properties on Novel Friction Stir Welded Al-Mg-Zn Alloy Joints Reinforced with Nano-SiC Particles

Figure 7

(a–e) SEM images of modified interlock FSW welded samples with addition of nano-SiC.

(a) SEM of Al-Mg-Zn/1 wt% nano-SiC (sample 1)

(b) SEM of Al-Mg-Zn/1.5 wt% nano-SiC (sample 2)

(c) SEM of Al-Mg-Zn/2 wt% nano-SiC (sample 3)

(d) SEM of Al-Mg-Zn/2.5 wt% nano-SiC (sample 4)

(e) SEM of Al-Mg-Zn/2.5 wt% nano-SiC (sample 5)