The impact of surface topography after milling process on tribological characteristics of 36CrNiMo4 steel

Abstract. Tribological investigations were conducted under a dry contact conditions. Milled steel discs were put in contact with ceramic balls made of SiC. Disc surfaces were characterized by different values of arithmetical mean height of the surface (Sa) from 0.182 to 5.17 µm. Wear volume of the discs, distance required to achieve stable value of friction force as well as coefficient of friction were calculated. The results revealed that the increase in surface roughness led to a reduction in wear loss. Dependency between several surface topography and tribological parameters were also presented.