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Electrospark WC–Co coatings with different iron concentration

Abstract The effect of the iron concentration in WC–Co electrode materials on the structure and properties of coatings produced by electrospark alloying (ESA) on low-carbon steel is investigated. The effect of the iron concentration on the mass transfer and thickness of the deposited coatings is described. The phase composition, surface roughness and wear resistance of the coatings in dry and microabrasive friction are investigated. It is shown that the rate of decarbidization of tungsten carbide in ESA with a higher iron concentration of the electrode materials increases.