ELECTROSPARK FLUORINE-CONTAINING COATINGS

Authors

DOI:

https://doi.org/10.36773/1818-1112-2025-137-2-68-72

Keywords:

hybrid coatings, electric spark alloying, morphology, fluorine-containing oligomers, microhardness, corrosion resistance

Abstract

Currently, various types of coatings are used to increase the service life of machines and mechanisms. A new direction in the creation of hydride coatings is presented based on a combination of the processes of electrospark alloying of metal surfaces and subsequent treatment in solutions of surface-active fluorine-containing compounds. The aim of the research is to study the morphology and physical and mechanical characteristics of hybrid coatings formed by combining the processes of electrospark formation of hard coatings and subsequent treatment in a solution of a fluorine-containing surface-active substance. Steel P6M5 was used as a substrate for the formation of coatings. Electrodes W, T15K6 were used to form the coatings. Foleox F-5 with the structural formula Rf-CONHR2 was used to modify electrospark coatings when modifying the substrate. The studies were carried out using modern methods: scanning electron and optical microscopy, microdurametric analysis, NTR IR spectroscopy, profilometry, corrosion testing methods. It is shown that the process of hybrid coating formation allows to significantly increase the physical and mechanical characteristics of both the original metal substrates and the modified electric spark coatings. This effect of increasing the performance characteristics is expressed in the increase in the microhardness and corrosion resistance of the hybrid coatings. An increase in the microhardness of hybrid coatings by 12-15 % is observed in relation to traditional electric spark coatings. The process of increasing the microhardness of steel substrates and electric spark coatings when treated with fluorine-containing oligomers is due to the healing of microdefects on the surface of the samples under study and the formation of a strong chemisorption compound between the substrate (steel, EIL coating) and the organofluorine layers. The formation of these hybrid coatings will significantly reduce the friction coefficient and wear rate of the developed hybrid coatings.

Author Biographies

Evgeniy Vitalievich Ovchinnikov, Yanka Kupala State University of Grodno

Doctor of Technical Sciences, Associate Professor, Head of the Department of Architecture and Construction, Yanka Kupala Grodno State University, Grodno, Belarus.

Andrey Cheslavovich Svistun, Yanka Kupala State University of Grodno

Candidate of Physical and Mathematical Sciences, Associate Professor, Associate Professor of the Department of Mechanical Engineering and Technical Operation of Automobiles, Yanka Kupala Grodno State University, Grodno, Belarus.

Andrei Ivanovich Verameichyk, Brest State Technical University

Candidate of Physical and Mathematical Sciences, Associate Professor, Senior Researcher at the Testing Center, Head of the Department of Theoretical and Applied Mechanics, Brest State Technical University, Brest, Belarus.

Nikolay Vladimirovich Lebedev, Synthetic Rubber Research Institute named after S. V. Lebedev

Doctor of Chemical Sciences, Chief Researcher, Synthetic Rubber Research Institute named after S. V. Lebedev, Saint Petersburg, Russia.

Vitaly Mikhailovich Khvisevich, Brest State Technical University

Candidate of Technical Sciences, Associate Professor, Professor of the Department of Theoretical and Applied Mechanics, Brest State Technical University, Brest, Belarus.

Vitaly Yurievich Falyosa, Center for Diagnostics, Expertise and Certification

Director of the Center for Diagnostics, Expertise and Certification, Saint Petersburg, Russia.

Evgeniy Ilyasovich Amirkhanov, Center for Diagnostics, Expertise and Certification

Deputy Director of the Center for Diagnostics, Expertise and Certification, Saint Petersburg, Russia.

Alexey Evgenievich Ovchinnikov, Yanka Kupala State University of Grodno

Student of the Faculty of Engineering, Yanka Kupala Grodno State University, Grodno, Belarus.

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Published

2025-07-21

How to Cite

(1)
Ovchinnikov, E. V.; Svistun, A. C.; Verameichyk, A. I.; Lebedev, N. V.; Khvisevich, V. M.; Falyosa, V. Y.; Amirkhanov, E. I.; Ovchinnikov, A. E. ELECTROSPARK FLUORINE-CONTAINING COATINGS. Вестник БрГТУ 2025, 68-72.

Issue

No. 2(137) (2025): Vestnik of Brest State Technical University

Section

Mechanical Engineering

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