Increasing the wear resistance of heavily loaded tribosystems by using combined ion-plasma diamond-like coatings CrSiAlN + DLC with nitrogen stabilization
https://doi.org/10.46973/0201-727X_2024_3_17
Abstract
The study considers the problem of determining the physico-mechanical and tribological parameters of ion-plasma DLC coatings applied to a steel substrate using nitrogen to stabilize the structure and thickness of coatings. The obtained dependences of the coefficient of friction µ and the run length L of the samples up to the moment of coating destruction by the current and induction coils (λ, A) – the power of the ion flux, the amount of stabilizer nitrogen (%N) allowed not only to optimize the coating modes, but also to identify the disadvantages of DLC coatings. In particular, it was found that the coefficient of friction remains practically constant and quite small over the entire range of loads at the level of µ = 0,17. As for wear, in the range of significant loads, the experimental dependence of the friction path to destruction continuously decreases and tends to zero. Therefore, further research was aimed at developing a technology for obtaining a combined coating by alternating CrAlSiN metal-ceramic layers obtained by arc spraying by physical vacuum deposition of PVD coatings, and carbon (including diamond-like) layers obtained by laser evaporation of graphite, without extracting substrate samples from the vacuum chamber of the BRV-600 installation. As a result of combining the high wear resistance of the CrAlSiN nitride coating and the low friction coefficient of the DLC coating, the wear resistance of highly loaded tribounits is significantly increased.
About the Author
A. I. Voropaev
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Voropaev Alexander Ivanovich, Director of the Research and Testing Center, RТC NT RD RSTU
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For citations:
Voropaev A.I. Increasing the wear resistance of heavily loaded tribosystems by using combined ion-plasma diamond-like coatings CrSiAlN + DLC with nitrogen stabilization. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2024;(3):17–27. (In Russ.) https://doi.org/10.46973/0201-727X_2024_3_17
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