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Volume 15
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10.3390/cryst15090762
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Article

Influence of Air Pressure on the Microstructure, Phase Composition, and Tribomechanical Performance of Thin ZrCN Coatings Deposited via HVOF Spraying

by
Sherzod Kurbanbekov
1,
Zhamila Suierkulova
2,
Gaukhar Omashova
2,
Berik Kaldar
1,*,
Alisher Temirbekov
1,
Sardor Kambarbekov
1,
Nurdaulet Shektibayev
1 and
Dilnoza Baltabayeva
1
1
Research Institute of Natural Sciences, Nanotechnology and New Materials, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan 161200, Kazakhstan
2
Department of Physics, Mukhtar Auezov South Kazakhstan Research University, Shymkent 160012, Kazakhstan
*
Author to whom correspondence should be addressed.
Crystals 2025, 15(9), 762; https://doi.org/10.3390/cryst15090762 (registering DOI)
Submission received: 6 August 2025 / Revised: 19 August 2025 / Accepted: 26 August 2025 / Published: 27 August 2025
Versions Notes

Abstract

The development of thin, wear-resistant coatings is a relevant area in the field of surface engineering, especially given the increasing demand for resource efficiency and reliability of machine elements. In this study, we investigate the structural and phase composition, tribological characteristics, and physical and mechanical properties of zirconium carbonitride (ZrCN) coatings deposited by high-velocity oxygen-fuel spraying (HVOF) on U8G carbon steel substrates. Particular attention is paid to the influence of spraying parameters, in particular air pressure, on the formation of coatings and their performance properties. X-ray phase analysis methods revealed the formation of Zr2CN, ZrC, ZrN, ZrO2, and Fe3O4 phases, with the dominance of the cubic phase ZrN(C) with a lattice parameter of a = 4.6360 Å. Tribological tests have shown that at an air pressure of 0.38 MPa, the minimum friction coefficient is achieved, presumably due to the formation of an amorphous CNx phase with a self-lubricating effect. The wear mechanism is predominantly abrasive in nature; the width of wear tracks is 329–759 μm. The coatings demonstrate a significant increase in microhardness—up to 1512–1857 HV, which is 4–4.5 times higher than the substrate. The results of adhesion tests carried out in accordance with ASTM D4541-22 showed a maximum adhesion strength of 14.56 MPa. The results obtained confirm the high efficiency of thin ZrCN coatings obtained by the HVOF method as a promising solution for protecting metal surfaces subject to intense wear in tribological systems.
Keywords: ZrCN coatings; HVOF; tribological properties; friction coefficient; microhardness; thin coating ZrCN coatings; HVOF; tribological properties; friction coefficient; microhardness; thin coating

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MDPI and ACS Style

Kurbanbekov, S.; Suierkulova, Z.; Omashova, G.; Kaldar, B.; Temirbekov, A.; Kambarbekov, S.; Shektibayev, N.; Baltabayeva, D. Influence of Air Pressure on the Microstructure, Phase Composition, and Tribomechanical Performance of Thin ZrCN Coatings Deposited via HVOF Spraying. Crystals 2025, 15, 762. https://doi.org/10.3390/cryst15090762

AMA Style

Kurbanbekov S, Suierkulova Z, Omashova G, Kaldar B, Temirbekov A, Kambarbekov S, Shektibayev N, Baltabayeva D. Influence of Air Pressure on the Microstructure, Phase Composition, and Tribomechanical Performance of Thin ZrCN Coatings Deposited via HVOF Spraying. Crystals. 2025; 15(9):762. https://doi.org/10.3390/cryst15090762

Chicago/Turabian Style

Kurbanbekov, Sherzod, Zhamila Suierkulova, Gaukhar Omashova, Berik Kaldar, Alisher Temirbekov, Sardor Kambarbekov, Nurdaulet Shektibayev, and Dilnoza Baltabayeva. 2025. "Influence of Air Pressure on the Microstructure, Phase Composition, and Tribomechanical Performance of Thin ZrCN Coatings Deposited via HVOF Spraying" Crystals 15, no. 9: 762. https://doi.org/10.3390/cryst15090762

APA Style

Kurbanbekov, S., Suierkulova, Z., Omashova, G., Kaldar, B., Temirbekov, A., Kambarbekov, S., Shektibayev, N., & Baltabayeva, D. (2025). Influence of Air Pressure on the Microstructure, Phase Composition, and Tribomechanical Performance of Thin ZrCN Coatings Deposited via HVOF Spraying. Crystals, 15(9), 762. https://doi.org/10.3390/cryst15090762

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