Effect of electrolyte modification with carbon nanotubes on the me-chanical and tribological characteristics of MAO-coatings
https://doi.org/10.46973/0201-727X_2025_4_53
Abstract
This study examined the influence of technological parameters of microarc oxidation (MAO), including modification of the base electrolyte with carbon nanotubes, on the wear resistance and microhardness of the formed coatings. Using the concept of a multifactorial experiment, factors such as anodic current density, carbon nanotubes concentration in the electrolyte, and grade of aluminum alloy (D16T, B95) were investigated. Wear resistance tests were performed using a ball-on-plane friction scheme according to ASTM G133-02, and microhardness was measured using the Vickers method. Through correlation-regression analysis and subsequent validation of the models using the Fisher criterion, it was established that the introduction of a small amount of carbon nanotubes into the electrolyte and the use of B95 alloy as a substrate at reduced current density improves the wear resistance and microhardness of MAO-coatings.
About the Authors
V. N. Malyshev
National University of Oil and Gas «Gubkin University»,
Chair “Tribology and Repair Technologies of Oil and Gas Equipment”
Russian Federation
Russian Federation
Malyshev Vladimir Nikolaevich, Doctor of Engineering Science, Professor
D. D. Matyushenko
National University of Oil and Gas «Gubkin University»,
Chair “Tribology and Repair Technologies of Oil and Gas Equipment”
Russian Federation
Russian Federation
Matyushenko Denis Dmitrievich, Postgraduate Student, Assistant of the Chair “Theoretical Mechanics”
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Review
For citations:
Malyshev V.N., Matyushenko D.D. Effect of electrolyte modification with carbon nanotubes on the me-chanical and tribological characteristics of MAO-coatings. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(4):53-64. (In Russ.) https://doi.org/10.46973/0201-727X_2025_4_53
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