Characteristics of Nanophase WC and WC-3 wt% (Ni, Co, and Fe) Alloys Using a Rapid Sintering Process for the Application of Friction Stir Processing Tools

Figure 3

FE-SEM images of powders after ball milling: (a) WC, (b) WC-3 wt% Fe, (c) WC-3 wt% Ni and (d) WC-3 wt% Co.

(a)

(b)

(c)

(d)