Features of Increasing the Wear Resistance of Machine Parts by Treatment with a Concentrated Heat Flow


  • Iu. Sokolan Khmelnytskyi National University
  • O. Romanishina Khmelnytskyi National University
  • K. Sokolan Khmelnytskyi National University
  • P. Maidan Khmelnytskyi National University
  • V. Karazey Khmelnytskyi National University




GTAW method, surface hardening, wear resistance of steel, electric arc treatment, concentrated heat flux.


The article discusses the possibility of using surface treatment of parts with a concentrated heat flow to increase the wear resistance of parts. This method provides conditions for the rapid crystallization of the metal structure after zonal surface melting of the sample surface with electric arc plasma. It has been found that the wear resistance of steel increases significantly with increasing scanning speed and decreasing current strength. The near-surface layers on the cross-sectional grinds of the melting areas were studied in comparison with the initial (without melting) state on the basis of diagrams of the method of continuous indenter immersion. The values of a number of micromechanical parameters characterizing the resistance to microplastic deformation and elastic-viscous properties of steel after strengthening heat treatment were obtained. It should be noted that with a fourfold increase in hardness, the wear resistance of the steel increased almost 10 times. This indicates that the wear resistance of metals under friction is determined not only by macroscopic strength and hardness, but also by the ability to relax local peak stresses under dynamic contact interaction


Orlovitch A. V. Surface hardening of cast iron by electric arc plasma / A. V. Orlovitch, A. S. Trytek, V. V. Shevelya. - Kyiv-Khmelnitsky, 2008. - 109 p. [In Russian]

Howard B. Cary, Scott C. Helzer. Modern Welding Technology. - Upper Saddle River, New Jersey: Pearson Education. – 2005. – 715 p. [In English]

Larry Jeffus. Welding: Principles and applications. - Thomson Delmar, 1997. – 901 p. [In English]

Shevelya V. V. Influence of electric arc treatment on structure and wear resistance of cast iron / V. V. Shevelya, A. S. Trytek, G. S. Kalda. // Problems of tribology. - 2009, - № 2. - p. 6-15. [In Russian]

Bulychev S. I. Testing of materials by continuous indentation / S. I. Bulychev, V. P. Alekhin. - Moscow: Mashinostroenie, 1990. – 224 p. [In Russian]

Bulychev S. I. Research of mechanical properties of materials with the help of kinetic diagram of load-depth imprint at micro-pressing / S. I. Bulychev, V. P. Alekhin. // Problems of Strength. - 1976. - № 9. - p. 79-83. [In Russian]

Bulychev S. I. Research of physical and mechanical properties of materials in near-surface layers and in micro-volumes by method of continuous indentation (review) / S. I. Bulychev, V. P. Alekhin, M. Kh. // Physics and Chemistry of Materials Processing. - 1979, № 5. - p. 69-81. [In Russian]




How to Cite

Sokolan, I., Romanishina, O., Sokolan, K., Maidan, P., & Karazey, V. (2023). Features of Increasing the Wear Resistance of Machine Parts by Treatment with a Concentrated Heat Flow. Problems of Tribology, 28(2/108), 37–43. https://doi.org/10.31891/2079-1372-2023-108-2-37-43