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Article

Influence of Detonation-Spraying Parameters on the Phase Composition and Tribological Properties of Al2O3 Coatings

1
Research CenterSurface, Engineering and Tribology, Amanzholov University, Ust-Kamenogorsk 070000, Kazakhstan
2
The Faculty of Basic Engineering Training, Daulet Serikbaev East Kazakhstan Technical University, Ust-Kamenogorsk 070000, Kazakhstan
3
Department of Physics, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan 161200, Kazakhstan
*
Author to whom correspondence should be addressed.
Academic Editor: Shih-Chen Shi
Coatings 2021, 11(7), 793; https://doi.org/10.3390/coatings11070793
Received: 26 May 2021 / Revised: 28 June 2021 / Accepted: 29 June 2021 / Published: 30 June 2021
(This article belongs to the Special Issue Intelligent Tribological and Functional Coatings)
Al2O3 coatings were applied on the surface of 12Ch18N10T steel by the detonation method at different degrees of filling of the detonation gun. The aim was to study the influence of technological parameters on the formation of the coating’s structure, phase composition and tribological characteristics. The degree of filling the gun with a gas mixture (C2H2/O2) varied from 53% to 68%. X-ray diffraction study showed that the content of α-Al2O3 increases depending on the degree of filling. The results showed that the hardness increases with an increase in the α-Al2O3 phase. When the gun is 53% filled with gas, the Al2O3-based coating has the hardness of 20.56 GPa compared to 58%, 63% and 68% fillings. Tribology tests have shown that the wear rate and friction coefficient of the coating is highly dependent on the degree of filling of the gun. View Full-Text
Keywords: detonation spray; coatings; aluminum oxide; microstructure; phase; micro-hardness; friction coefficient detonation spray; coatings; aluminum oxide; microstructure; phase; micro-hardness; friction coefficient
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MDPI and ACS Style

Kantay, N.; Rakhadilov, B.; Kurbanbekov, S.; Yeskermessov, D.; Yerbolatova, G.; Apsezhanova, A. Influence of Detonation-Spraying Parameters on the Phase Composition and Tribological Properties of Al2O3 Coatings. Coatings 2021, 11, 793. https://doi.org/10.3390/coatings11070793

AMA Style

Kantay N, Rakhadilov B, Kurbanbekov S, Yeskermessov D, Yerbolatova G, Apsezhanova A. Influence of Detonation-Spraying Parameters on the Phase Composition and Tribological Properties of Al2O3 Coatings. Coatings. 2021; 11(7):793. https://doi.org/10.3390/coatings11070793

Chicago/Turabian Style

Kantay, Nurgamit, Bauyrzhan Rakhadilov, Sherzod Kurbanbekov, Didar Yeskermessov, Gulnara Yerbolatova, and Akbota Apsezhanova. 2021. "Influence of Detonation-Spraying Parameters on the Phase Composition and Tribological Properties of Al2O3 Coatings" Coatings 11, no. 7: 793. https://doi.org/10.3390/coatings11070793

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