THE HARDNESS OF SUPERFICIAL LAYERS OBTAINED THROUGH ELECTRICAL SPARKING WITH HARD CARBIDE ELECTRODES AND SOFT MATERIALS

The work entitled “The hardness of superficial layers obtained through electrical sparking with hard carbide electrodes and soft materials”, presents the research done by the author in regards hardness increase of superficial layers obtained through impulses electrical discharges. This increase appears because of the thermal effect of pulsed discharges. The aria of material which is under the deposited layer is subjected to a pronounced heating followed by rapid cooling by taking over the heat from the base material. In this way occurs a hardening of metallic material located in close proximity to superficial layer deposited.