Fabrication of Surface Level Cu/SiCp Nanocomposites by Friction Stir Processing Route

Figure 6

Optical micrographs of nanocomposites at (a–c) the interface between SZ and BM and (d–f) SZ region at different parameter combinations.

(a) 500 rpm/20 mm/min/1° 

(b) 750 rpm/50 mm/min/0°

(c) 1000 rpm/20 mm/min/1°

(d) 500 rpm/20 mm/min/1°

(e) 750 rpm/20 mm/min/2°

(f) 1000 rpm/20 mm/min/1°