Abrasion resistance as a function of substructural changes in steel

X-ray investigation showed that the size of the fragments formed in the surface layers of steels during the wear process is dependent on the abrasive grit and corresponding wear rate. In the first stage, the size of the fragments is relatively small. Then, it becomes larger, and therefore, work hardening of the surface layers decreases by comparison to those under wear with a smaller grit diameter. The dimensions of fragments are maximal and change only slightly in the third stage when we used abrasive paper of a greater grit size. Therefore, in these cases, work hardening of surface layers is minimal and it is expected that wear resistance will also be minimal.