INVESTIGATION OF THE CORRELATION BETWEEN INTERNAL STRESSES AND ADHESION OF MAGNETRON DEPOSITED CrN COATINGS FOR DIFFERENT BIAS VOLTAGE

Milko Yordanov

Volume : IV, Issue : XII, December - 2014

INVESTIGATION OF THE CORRELATION BETWEEN INTERNAL STRESSES AND ADHESION OF MAGNETRON DEPOSITED CrN COATINGS FOR DIFFERENT BIAS VOLTAGE

Milko Yordanov

Abstract :

<p>CrN coatings have been deposited on X10CrNi18&ndash;10 steel substrates by magnetron sputtering with chromium target at substrate temperature Ts=500 oC and four bias voltages Us= 0, &ndash;50, &ndash;100 and &ndash;200 V. The< /> phase composition, lattice parameter, hardness and Youngs modulus of the coatings have been determined. The internal stresses, adhesion and cohesion of the coatings at each bias voltage have been investigated. The influence of bias< /> voltage and internal stresses of the coatings on their adhesion and cohesion has been discussed.</p>