The results of abrasion tests are presented in Figs. 8–11. For each matrix material there was a different carbide that was best suited for it – resulting in the best abrasion resistance.
The results for NiCrBSi-matrix with different carbides are pre- sented in Fig. 8. One noticeable feature is the poor result of 30% TiC. Other than that, very good results of spherical tungsten car- bides were observed. This combination is a very widely used mate- rial for many applications and seems to compete rather well with the less common MMC’s containing TiC and VC.