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

Figure 6

(a–d) Microstructures of modified interlock FSW welded samples with addition of nano-SiC.

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

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

(c) Al-Mg-Zn/1 wt% nano-SiC (sample 4)

(d) Al-Mg-Zn/1 wt% nano-SiC (sample 5)