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Abstract <p>The article studies nonequiatomic coatings based on high-entropy alloys of the Cr–Ti–Zr–Nb–Hf system and their nitrided modifications (Cr–Ti–Zr–Nb–Hf)N obtained by cathodic arc spraying. The structure was studied using scanning electron microscopy, the physicomechanical characteristics were determined using the continuous indentation method, and the tribological properties were assessed using the ball-and-disk scheme. The optimal value of the reference voltage and the amount of nitrogen supplied to the vacuum chamber were established to achieve the best physicomechanical characteristics. For the initial Cr–Ti–Zr–Nb–Hf coating, the reference stress value was established at which the minimum friction coefficient was observed. It has been established that the nitrided modification allows for a significant reduction in the coefficient of friction and a decrease in wear intensity. Based on the results, the issue of correlation between the technological parameters of application, physical, mechanical, and tribological characteristics of coatings made of high-entropy alloys was considered.</p>

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Influence of Technological Parameters on the Properties of Coatings Based on HEA Cr–Ti–Zr–Nb–Hf and (Cr–Ti–Zr–Nb–Hf)N: From Structure to Wear Resistance

  • 期刊论文

  • 发表日期：

    2026年5月29日

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  • K. N. Polityko,
  • V. I. Kolesnikov,
  • I. V. Kolesnikov,
  • O. A. Belyak,
  • D. S. Manturov,
  • A. I. Azoyan,
  • E. D. Anikina

摘要

Abstract

The article studies nonequiatomic coatings based on high-entropy alloys of the Cr–Ti–Zr–Nb–Hf system and their nitrided modifications (Cr–Ti–Zr–Nb–Hf)N obtained by cathodic arc spraying. The structure was studied using scanning electron microscopy, the physicomechanical characteristics were determined using the continuous indentation method, and the tribological properties were assessed using the ball-and-disk scheme. The optimal value of the reference voltage and the amount of nitrogen supplied to the vacuum chamber were established to achieve the best physicomechanical characteristics. For the initial Cr–Ti–Zr–Nb–Hf coating, the reference stress value was established at which the minimum friction coefficient was observed. It has been established that the nitrided modification allows for a significant reduction in the coefficient of friction and a decrease in wear intensity. Based on the results, the issue of correlation between the technological parameters of application, physical, mechanical, and tribological characteristics of coatings made of high-entropy alloys was considered.