Fig. 4From: Wear Resistance of Steels with Surface Nanocrystalline Structure Generated by Mechanical-Pulse TreatmentDependence of the dry friction coefficient μ of steel 35 from a specific load. The friction coefficient was determined in the air in the friction pair steel 35 (specimen)–steel ShKh15 (counter body). (1) as-received state of steel 35. (2) Steel 35 after MPTBack to article page