This article is cited in 38 papers

Surface physics, thin films

Adhesive strength, superhardness, and the phase and elemental compositions of nanostructured coatings based on Ti–Hf–Si–N

A. D. Pogrebnyak^ab, V. M. Beresnev^c, A. A. Dem'yanenko^a, V. S. Baidak^a, F. F. Komarov^d, M. V. Kaverin^a, N. A. Makhmudov^e, D. A. Kolesnikov<sup>f

a</sup> Sumy Institute for Surface Modification
^b G. V. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine
^c Kharkiv National University
^d Belarusian State University, Minsk
^e Tashkent University of Information Technology, Samarkand Branch
^f National Research University "Belgorod State University"

Abstract: New superhard coatings based on Ti–Hf–Si–N with good physical and mechanical properties have been fabricated. A comparative analysis of the physical, mechanical, and tribomechanical characteristics of the coatings has been performed. The values of hardness, modulus of elasticity, elastic recovery, adhesive strength, friction coefficient, and wear rate of the coatings have been determined and calculated. The specific features of deformation and fracture of the coatings deposited on a steel substrate during the adhesion tests have been described. It has been shown that the parameters measured during scratching make it possible to distinguish the threshold values of the critical load, which lead to different (cohesive and adhesive) types of failure of the coatings during tribological tests. The stoichiometry for different series of samples with Ti–Hf–Si–N coatings has been determined using Rutherford backscattering, secondary ion mass spectrometry, and energy dispersive microanalysis.

Received: 11.01.2012

 English version: Physics of the Solid State, 2012, 54:9, 1882–1890

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