Wear resistance of self-lubricating coatings due to the formation of carbide graphite
Keywords:friction, wear, secondary structures, anti-friction layer
The results of researching the characteristics of friction and wear of the developed self-lubricating nanocomposite coatings containing MgC2, are presented. Due to the interrelation of thermal and mechanical fluctuations, magnesium carbide thermally decomposes and forms structurally free α-graphite. The specified graphite creates a surface antifriction layer, which minimizes the contact parameters. The composition and structure of self-lubricating coatings are proposed, which showed high wear-resistant properties in the entire load-speed range, simulating the operation of the friction unit in field operating condition. It is shown that the means of controlling wear and ensuring high performance is the presence of both a thin film layer of graphite and the formation of fine secondary structures. All this provides the modification of the friction surface and protects unacceptable plastic deformation processes.
Berman, D., Narayanan, B., Cherukara, M.J. and dr. (2018), “Operando tribochemical formation of onion-like-carbon leads to macroscale superlubricity”, Nat Commun, vol. 9, no. 1164, pp. 1–9. https://doi.org/10.1038/s41467-018-03549-6
Wang, Hao, Xie, Xuan, Hua, Xijun, Xu, Sheng, Yin, Bifeng and Qiu, Baijing (2020), “Analysis of the lubrication process with composition of solid lubricants of laser-modified sliding surfaces”, Advances in Mechanical Engineering, no. 12. https://doi.org/10.1177/1687814020916078
Wu, Shiwen, Tian, Siyu, Menezes, Pradeep L and Xiong, Guoping (2020), “Carbon solid lubricants: role of different dimensions”, The International Journal of Advanced Manufacturing Technology, vol. 8, no. 107. pp. 3875–3895. https://doi.org/10.1007/s00170-020-05297-8
Zhang, Tiantian, Lan, Hao, Yu, Shouquan, Huang, Chuanbing, Du, Lingzhong and Zhang, Weigang (2017), “High-Temperature Solid Lubricant Coating by Plasma Spraying Using Metal-Metal Clad Powders”, Journal of Thermal Spray Technology, no. 26. https://doi.org/10.1007/s11666-017-0591-0
Okovity, V.A., Panteleenko, F.I., Okovity, V.V. and Astashinsky, V.M. (2017), “Production of Composite Ceramic Material for Thermal Spraying”, Science and Technology, no. 3, pp. 181–188.
Bolsunovskaya, T.A., Efimochkin, I.Yu. and Sevostyanov, N.V. (2018), “The influence of the brand of graphite as a solid lubricant on the tribotechnical properties of a metal composite material”, Proceedings of VIAM, vol. 67, no. 7, pp. 69–77.
Babak, V.P., Shchepetov, V.V, Suprun, T.T. and Bilchuk, Ye.Yu. (2019), Antifriction nanomaterial with magnesium carbide, Publ. 07.10.2019, Bull. №13, Ukraine, Patent № 119621.
Babak, V.P., Shchepetov, V.V. and Harchenko, S.D. (2019), “Antifriction Nanocomposite Coatings that Contain Magnesium Carbide”, Journal of Friction and Wear, vol. 6, no. 40, pp. 593–598. https://doi.org/10.3103/S1068366619060035
Babak, V.P., Shchepetov, V.V., Astakhov, E.A. and Nedayiborsch, S.D. (2017), Method of production crystalline nanopowders, Publ. 25.04.2017, Bull. №8, Ukraine, Patent № 115482.
Dragobetskii, V.V., Shapoval, A.A., Mospan, D.V., Trotsko, O.V. and Lotous, V.V. (2015), “Excavator bucket teeth strengthening using a plastic explosive deformation”, Metallurgical and Mining Industry, no. 4, рp. 363–368.
Korniyenko, B.Y. and Osipa, L.V. (2018), “Identification of the granulation process in the fluidized bed”, ARPN Journal of Engineering and Applied Sciences, vol. 13, no. 14, pp. 4365–4370.
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