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Vol.3, No.4, 2024: pp.164-172
Study of structure and microhardness of protective oxide-ceramic coatings obtained by micro-arc oxidation on deposited surfaces
Authors:
Yury Kuznetsov1
, Aleksey Gribakin1
, Igor Kravchenko2,3
, Vladimir Goncharenko1
,
Alexander Feryabkov4
, Alexander Panov5
, Larisa Kalashnikova6
1Orel State Agrarian University named after N.V. Parakhin, Orel, Russia
2Institute of Mechanical Engineering of the Russian Academy of Sciences named after A.A. Blagonravov (IMASH RAS), Moscow, Russia
3Russian State Agrarian University – MTAA named after K.A. Timiryazev, Moscow, Russia
4Vernadsky Russian State University of National Economy, Balashikha, Russia
5The State Scientific Institution “The Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus”, Minsk, Republic of Belarus
6Orel State University named after I.S. Turgenev, Orel, Russia
Received: 2 August 2024
Revised: 28 October 2024
Accepted: 14 November 2024
Published: 31 December 2024
Abstract:
The paper is devoted to studying the structure and microhardness of
protective oxide-ceramic coatings obtained by micro-arc oxidation on the
deposited surfaces of parts. Experimental researches were carried out with
the use of the commonly used perfected methods and up-to-date
measuring instruments and equipment. AlSi7Mg aluminum alloy was used
to conduct the research and was deposited with various wires. A welding
machine UDG-180 was used to surface the samples. Hardened layers were
formed on the deposited surfaces in the developed electrolyte in an
installation for micro-arc oxidation, working in the anode-cathode mode. It
has been established that the hardened layer formed by micro-arc
oxidation is characterized by high microhardness. The increased
microhardness of coatings is explained by the presence in their structure of
high-temperature solid-phase modification α-Al2O3. Introducing
electrolytes of composite materials 1.5 to 1.8 times allows for shortening
the oxidation duration. Coatings obtained by micro-arc oxidation are
heterogeneous in thickness and physical properties. Considering
mechanical processing, the thickness of the hardened layer formed on the
deposited surface of the part must be at least 90-120 μm.
Keywords:
Micro-arc oxidation,
Electrolyte, Aluminum alloy,
Welding wire, Coating,
Thickness
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© 2024 by the authors. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)
Volume 5
Number 1
March 2026.
How to Cite
Y. Kuznetsov, A. Gribakin, I. Kravchenko, V. Goncharenko, A. Feryabkov, A. Panov, L. Kalashnikova, Study of Structure and Microhardness of Protective Oxide-Ceramic Coatings Obtained by Micro-Arc Oxidation on Deposited Surfaces. Advanced Engineering Letters, 3(4), 2024: 164-172.
https://doi.org/10.46793/adeletters.2024.3.4.3
More Citation Formats
Kuznetsov, Y., Gribakin, A., Kravchenko, I., Goncharenko, V., Feryabkov, A., Panov, A., & Kalashnikova, L. (2024). Study of Structure and Microhardness of Protective Oxide-Ceramic Coatings Obtained by Micro-Arc Oxidation on Deposited Surfaces. Advanced Engineering Letters, 3(4), 164-172.
https://doi.org/10.46793/adeletters.2024.3.4.3
Kuznetsov, Yury, et al. “Study of Structure and Microhardness of Protective Oxide-Ceramic Coatings Obtained by Micro-Arc Oxidation on Deposited Surfaces.“ Advanced Engineering Letters, vol. 3, no. 4, 2024, pp. 164-172.
https://doi.org/10.46793/adeletters.2024.3.4.3
Kuznetsov, Yury, Aleksey Gribakin, Igor Kravchenko, Vladimir Goncharenko, Alexander Feryabkov, Alexander Panov, and Larisa Kalashnikova. 2024. “Study of Structure and Microhardness of Protective Oxide-Ceramic Coatings Obtained by Micro-Arc Oxidation on Deposited Surfaces.“ Advanced Engineering Letters, 3 (4): 164-172.
https://doi.org/10.46793/adeletters.2024.3.4.3
Kuznetsov, Y., Gribakin, A., Kravchenko, I., Goncharenko, V., Feryabkov, A., Panov, A. and Kalashnikova, L. (2024). Study of Structure and Microhardness of Protective Oxide-Ceramic Coatings Obtained by Micro-Arc Oxidation on Deposited Surfaces. Advanced Engineering Letters, 3(4), pp. 164-172.
doi: 10.46793/adeletters.2024.3.4.3.