Effect of pulse duration and size of interelectrode interval on electrospark spraying. II. Effect of pulse duration and size of interelectrode interval on composition and mechanical properties of coatings

The effect of electrospark spaying on the hardness, wear resistance, and phase composition of hard-alloy coatings is investigated. A coating mechanism is proposed to consider change in dynamic properties of cathode jets depending on the interelectrode interval and the effect of pulse duration on the local temperature of the substrate.