Multi-element vacuum-arc coatings of the TiZrHfNbTaVN system

Abstract

The research considers the influence of constant (Ub = -45...-200 V) and pulsed (Uip = -800...-1200 V) displacement potential on the composition, structure and mechanical properties of multi-element vacuum-arc coatings of the TiZrHfNbTaVN systemX-ray diffraction analysis shows the formation of a two-phase state, which consists of an fcc crystal lattice of the NaCl structure type and a small amount of the bcc phase, which may be due to the presence of a droplet component. The use of an additional pulsed potential does not lead to an improvement in surface quality and an increase in mechanical properties. The maximum hardness of 52 GPa was obtained at a constant displacement potential of -200 V.