Structure and properties of multi-period vacuum-arc coatings based on chromium nitride


Postelnyk H. O. , Sobol O., Kucerova L., Dur O.

FUNCTIONAL MATERIALS, vol.27, no.2, pp.303-310, 2020 (Journal Indexed in ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 2
  • Publication Date: 2020
  • Doi Number: 10.15407/fm27.02.303
  • Title of Journal : FUNCTIONAL MATERIALS
  • Page Numbers: pp.303-310

Abstract

The properties of multi-period nanocomposite coatings based on chromium nitride are considered. The effect of the negative bias potential on the phase-structural state and mechanical characteristics of the coatings was investigated by X-ray diffractometry combined with the study of hardness by nanoindentation, surface roughness and coefficient of friction during scratch testing. It has been established that all the systems are characterized by the formation of a cubic crystal lattice of the structural type NaCl, as well as the effect of texture on hardness values. For the studied coatings, the hardness is in the range of 20-25 GPa. The presence of texture [311] in CrN/MoN nanocomposite coatings leads to the lowest friction coefficient with a value of about 0.2.