THE USE OF POWDER MATERIALS OF HIGHLY HARD COMPOUNDS FOR THE FORMATION OF ELECTRIC SPARK COATINGS FOR VARIOUS FUNCTIONAL PURPOSES

Authors

  • Evgeny Vitalievich Auchynnikau Yanka Kupala State University of Grodno
  • Valentin Vladimirovich Mihailov Institute of Applied Physics of the Academy of Sciences of Moldova
  • Nikolai Mikhailovich Chekan Physical and Technical Institute of the National Academy of Sciences of Belarus
  • Evgenia Ivanovna Eysimont Yanka Kupala State University of Grodno
  • Dmitry Alexandrovich Linnik Yanka Kupala State University of Grodno
  • Sergey Khristoforovich Ivashku Institute of Applied Physics of the Academy of Sciences of Moldova https://orcid.org/0000-0003-1314-5199
  • Igor Petrovich Akula Physicotechnical Institute of the National Academy of Sciences of Belarus
  • Andrei Ivanovich Veremeychyk Brest State Technical University https://orcid.org/0000-0003-0373-482X
  • Andrey Cheslavovich Svistun Yanka Kupala State University of Grodno

DOI:

https://doi.org/10.36773/1818-1112-2024-135-3-74-80

Keywords:

electric spark alloying, hardness, nanocomposites, titanium carbides and nitrides

Abstract

Electric spark alloying of solid surfaces is a promising direction for increasing the performance properties of materials. Formation of superhard material coatings on a substrate allows to significantly increase hardness, wear resistance, resistance to high temperatures and pressure, and improve the performance characteristics of products by 1.5–5 times. This is due to the formation of various multicomponent structures in electric spark coatings that have increased strength and tribotechnical characteristics. The aim of the work was to study the structure and physical and mechanical properties of electric spark coatings obtained from powder materials. Various powder charge compositions and electric spark discharge parameters were used to form the coatings. The coatings were formed under standard climatic conditions by combining powder materials based on titanium carbide (TiC), aluminum (Al), carbon (technical graphite), titanium nitride (TiN), aluminum nitride (AlN) using the developed technology. The strength and adhesion properties of coatings obtained by the electric spark alloying method were studied. The studies to determine the adhesion characteristics using scratch analysis and Rockwell methods showed that coatings based on TiN+Al compounds have high adhesion strength. It was found that in TiN+Al coatings, electric spark alloying can lead to the formation of MAX phases and high-entropy compounds, which has a positive effect on the physical and mechanical properties of the formed coatings. The microhardness of the studied coatings is increased by 2–4 times compared to the original titanium substrates. The dependence of the coating microhardness on the indenter penetration depth was studied. The dependence of the strength characteristics on the indenter penetration depth of the TiC+Al electric spark coating (0.9 J) formed on the VT1 titanium alloy is nonlinear with an extremum in the region of a coating thickness of 9–10 μm. The strength characteristics of electrospark coatings formed by a contactless method from refractory metals were investigated. The possibility of forming coatings from silicate ceramics with increased values of microhardness and adhesive strength was established.

Author Biographies

Evgeny Vitalievich Auchynnikau, Yanka Kupala State University of Grodno

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

Valentin Vladimirovich Mihailov, Institute of Applied Physics of the Academy of Sciences of Moldova

Doctor of Technical Sciences, Associate Professor, Leading Researcher of the Laboratory of Electrophysical and Electrochemical Methods of Materials Processing named after Boris Lazarenko, Institute of Applied Physics of the Academy of Sciences, Chisinau, Moldova.

Nikolai Mikhailovich Chekan, Physical and Technical Institute of the National Academy of Sciences of Belarus

Candidate of Physical and Mathematical Sciences, Head of the Laboratory of Nanomaterials and Ion Plasma Processes, State Scientific Institution “Physical and Technical Institute of the National Academy of Sciences of Belarus”, Minsk, Belarus.

Evgenia Ivanovna Eysimont, Yanka Kupala State University of Grodno

Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Logistics and Management Methods, Yanka Kupala State University of Grodno, Grodno, Belarus.

Dmitry Alexandrovich Linnik, Yanka Kupala State University of Grodno

Candidate of Technical Sciences, Associate Professor, Dean of the Faculty of Engineering, Yanka Kupala State University of Grodno, Grodno, Belarus.

Sergey Khristoforovich Ivashku, Institute of Applied Physics of the Academy of Sciences of Moldova

Doctor of Sciences, Head of the Laboratory of Electrophysical and Electrochemical Methods of Materials Processing named after Boris Lazarenko, Institute of Applied Physics, Chisinau, Moldova.

Igor Petrovich Akula, Physicotechnical Institute of the National Academy of Sciences of Belarus

Candidate of Physics and Mathematics Sciences, Leading Researcher, Laboratory of Nanomaterials and Ion-Plasma Processes, Physicotechnical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus.

Andrei Ivanovich Veremeychyk, Brest State Technical University

Candidate of Physics and Mathematics Sciences, Associate Professor, Head of the Department of Theoretical and Applied Mechanics, Senior Research Associate of Testing Center, Brest State Technical University, Brest, Belarus.

Andrey Cheslavovich Svistun, Yanka Kupala State University of Grodno

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

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Обложка журнала Vestnik of BrSTU 3(135) 2024

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Published

2024-11-22

How to Cite

(1)
Auchynnikau, E. V.; Mihailov, V. V.; Chekan, N. M.; Eysimont, E. I.; Linnik, D. A.; Ivashku, S. K.; Akula, I. P.; Veremeychyk, A. I.; Svistun, A. C. THE USE OF POWDER MATERIALS OF HIGHLY HARD COMPOUNDS FOR THE FORMATION OF ELECTRIC SPARK COATINGS FOR VARIOUS FUNCTIONAL PURPOSES. Вестник БрГТУ 2024, 74-80.

Issue

No. 3(135) (2024): Vestnik of Brest State Technical University

Section

Mechanical Engineering

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