Abstract
The laws of wear are experimentally studied in the course of the sliding friction of gas-thermal coatings formed by spraying during electric-arc metallization using powdered wires. The microgeometry of the wear surfaces of these coatings is found to correctly reflect the stages of wear. A theoretical probabilistic approach is proposed to describe the microgeometries of the electrometallized coatings and the counterbody material under steady-state wear conditions. According to this approach, the structure of the wear surface is described by the root-mean-square and the arithmetical-mean deviations of the surface profile from a plane determined by the average linear wear.
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