WC particles distribution model in the cross-section of laser cladded NiCrBSi + WC coatings, for different wt% WC

All the coatings studied (10 to 50 wt% WCfeeder) show similar behaviour: The percentage of WC at the bottom of the coating is greater than the theoretical percentage of the coating (% adjusted at the feeder), and lower than the theoretical percentage at the top of the coating. Also, in this area, all specimens present around 40% of the theoretical percentage of carbides. This model of distribution of carbides allows to obtain an optimized manufacturing process in coatings made for wear performance. This is obtained by simultaneous control of the theoretical percentage of particles and the grinding depth of the coating. The same actual concentration of WC on the surface of the coating can be obtained with different combinations of wt% WCfeeder and grinding depth.