Influence of sample speed and impact angle on the wear of boride coatings in the mass of free abrasive particles

This paper presents a study on the wear of boride coatings applied to a C45E steel substrate, tested in the mass of free abrasive particles (Ottawa sand, AFS 50/70), with respect to the sample speed (v) and the impact angle (a) between the abrasive particles and the worn surface. Experimental data were obtained by using a central composite design (CCD) and then statistically processed and analysed. The experimental findings indicate that both the sample speed and the impact angle between abrasive particles and the worn surface are statistically significant factors influencing the wear process and mass loss of the coating, with the speed having a more pronounced effect on mass loss.