Typical SEM micrographs of cross sections of the as sprayed
Cu–Ag deposits are presented in Fig. 5. The black areas correspond
to the Cu-rich solid solution and the white areas to the eutectic
phase consisting of the Cu-rich solid solution and the Ag-rich solid
solution. During the cold spray process, the powder particles do
not undergo melting and quenching and hence no visible change
in the phase repartition occurs.