Effects of Mechanical Alloying on Sintering Behavior of Tungsten Carbide-Cobalt Hard Metal System

Figure 6

(a) SEM images of the unalloyed sample. SEM images of the samples sintered for different mechanical alloying times: (b) 20 min, (c) 12 h, and (d) 24 h.

(a)

(b)

(c)

(d)