Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints

Figure 6

Optical micrographs of the NZ regions at 50 μm scale (objective 50x) (a) base material, (b) unprocessed GTAWed joint, (c) friction stir-processed GTAWed joint, (d) unprocessed FSWed joint, and (e) friction stir-processed FSWed joint.

(a)

(b)

(c)

(d)

(e)