Fig. 7

SEM microstructure of Ni60-WC fused cladding layer under 6 KG applied force by unassisted process and synchronized rolling assisted process. (a): N2 top region; (c): N2 middle region; (e): N2 bottom region; (b): R6-2 top region; (d): R6-2 middle region; (f): R6-2 bottom region.