MATERIAL SCIENCE ASPECTS OF EXTENDING THE SERVICE LIFE OF CYCLICALLY LOADED COMPONENTS IN FRICTION ASSEMBLIES WITH GAS-THERMAL COATINGS

Authors

DOI:

https://doi.org/10.18372/0370-2197.1(110).20919

Keywords:

gas-thermal coatings, cyclic loading, detonation-gas spraying, wear resistance, friction units, fatigue strength

Abstract

The paper considers the technological features of increasing the service life of cyclically loaded parts of friction units with gas-thermal coatings. The results of research and their analysis of the influence of individual technological options for forming wear-resistant coatings obtained by the detonation-gas spraying (DGP) method on the cyclic strength of the base material - titanium alloy VT8 are presented. The use of variants of the chemical Ni-sublayer in the research program provided a smoother change in elastic properties from the base material to the coating. The influence of the structure, phase composition, porosity and adhesion strength of gas-thermal coatings on fatigue resistance, wear resistance and crack resistance of parts under conditions of variable loads and friction is analyzed. The role of residual stresses, mechanisms of nucleation and development of fatigue cracks in the "base - coating" system is shown, as well as the influence of technological parameters of spraying and post-spraying treatment on operational characteristics. The directions for optimizing the composition and structure of coatings in order to increase the durability and reliability of friction units under cyclic loading conditions are substantiated.

Author Biographies

Myroslav Kindrachuk, State University "Kyiv Aviation Institute"

Doctor of Technical Sciences, Professor, Professor of the Department of Applied Mechanics and Materials Engineering, , 1 Lubomyra Huzar Ave., Kyiv, Ukraine, 03058

Oleksandr Balitskii, G. V. Karpenko Institute of Physics and Mechanics, National Academy of Sciences of Ukraine; West Pomeranian University of Technology

Professor of the Department of Vehicle Operation, Doctor of Technical Sciences, Professor at the West Pomeranian University of Technology, 19 Piąstowa Ave. Szczecin, Republic of Poland, 70-310, Leading Researcher, Department of Strength of Materials and Structures in Water-Containing Environments, G. V. Karpenko Institute of Physics and Mechanics, National Academy of Sciences of Ukraine, 5 Naukovo St., Lviv, Ukraine, 79-601 Naukova St., 5, Lviv, Ukraine, 79-601 

Nataliia Stebeletska, SS NULES of Ukraine “Berezhany Agrotechnical Institute”

Сandidate of  Technical Sciences, Associate Professor of  the Department of Applied Mechanics and Technical Servise SS NULES of Ukraine  “Berezhany Agrotechnical Institute”, St. Akademichna, 20, Berezhany, Ukraine, 47501

Volodymyr Kharchenko, State university Kyiv Aviation Institute

head of laboratory of the Department of Applied Mechanics and Materials Engineering, State University "Kyiv Aviation Institute", 1 Lubomyra Huzar Ave., Kyiv, Ukraine, 03058

Tetyana Maslak, State university Kyiv Aviation Institute

Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Aircraft Design, State University "Kyiv Aviation Institute", 1 Lyubomyr Huzar Ave., Kyiv, Ukraine, 03058

Alina Yurchuk, State university Kyiv Aviation Institute

Candidate of Technical Sciences, Associate Professor, Department of Computerized Electrical Systems and Technologies State University "Kyiv Aviation Institute", 1 Liubomyr Huzar Ave

References

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Published

2026-04-09

How to Cite

Kindrachuk, M., Balitskii, O., Stebeletska, N., Kharchenko, V., Maslak, T., & Yurchuk, A. (2026). MATERIAL SCIENCE ASPECTS OF EXTENDING THE SERVICE LIFE OF CYCLICALLY LOADED COMPONENTS IN FRICTION ASSEMBLIES WITH GAS-THERMAL COATINGS. Problems of Friction and Wear, (1(110), 13–20. https://doi.org/10.18372/0370-2197.1(110).20919

Issue

No. 1(110) (2026)

Section

Проблеми тертя та зношування

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