Effects of debris transfer and abrasive particle damage on the abrasive wear of hardened bearing steel

The influence of the transferred particles on the abrasive paper on the wear rate of the hardened bearing steel (SUJ 2) has been studied using the analytical method, which assumed a conical and a frustum grain without, and with, a transferred particle, and the results compared with the trend of the experimental results. The analytical results revealed that the total cross-sectional area plowed by grains decreased with increasing amounts of transferred particles on the abrasive paper and with decreasing truncated levels of the surface height distribution of abrasives. In the repeated sliding, the transfer of wear particles to the abrasive grains and their shedding occurred so that the specific wear rates of the SUJ 2 pins decreased as presumed by the analytical results. The evaluated method of the specific wear rate was also explained by using the topographical parameters and the fraction of debris removed from the volume of micro-grooves.