Study of the influence of combined processing on the structure and properties of electrospark coatings on low-carbon steel using a self-fluxing special electrode

The results of a study of the effect of combined processing on the structure and physical and mechanical properties of electrophysical coatings after smoothing with a specially designed tool and devices are presented. After smoothing in the optimized mode and additional In the heat treatment of the composite, the authors found polygonal structures in the PIA structure, which positively affect the fatigue strength of the composite. In the coating under a slight load, slip lines were observed, in which dislocations mix freely. In the smoothed coating, sliding in these planes was hindered due to the formation of polygonal structures and the pinning of dislocations by impurity atoms and their clusters, which will contribute to an increase in fatigue resistance.