Application of wear-resistant PVD coatings on the friction surfaces of gears and gear couplings of a promising automatic transmission
https://doi.org/10.46973/0201-727X_2024_4_49
Abstract
A promising power automatic transmission developed by RSTU scientists is considered. The device of this automatic transmission (AT) uses an original, unparalleled gear clutch used as a friction reinforcement link. Due to the absence of discontinuities in the flow of power transmitted using this gear coupling and, as a result, an increase in the gear speed, it was possible to increase the efficiency of the automatic transmission. During long-term operation, the components and parts of this unit wear out. One of the ways to increase their wear resistance is to apply vacuum coatings that protect surfaces from their intense wear. To achieve this task, a high-entropy CuCrMnFeCoNi coating on a 40KHN2MA steel substrate was obtained by magnetron sputtering. The coating has a uniform structure and a tight fit to the substrate. Tribological studies have allowed us to establish a low coefficient of friction m = 0,12, which is significantly lower than the values of the steel substrate. Developed coating will reduce the coefficient of friction and wear of the gear coupling.
About the Authors
I. V. Kolesnikov
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Kolesnikov Igor Vladimirovich, Head of Scientific Laboratory RSTU, Corresponding Member of RAS, Doctor of Engineering Sciences
V. V. Shapovalov
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Shapovalov Vladimir Vladimirovich, Chair «Transport Machines and Tribotechnics», Doctor of Engineering Sciences, Professor
O. I. Kovalenko
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Kovalenko Oleg Igorevich, Chair «Transport Machines and Tribotechnics», Postgraduate Student
K. N. Polityko
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Polityko Kirill Nikolayevich, Junior Researcher Сhair «Theoretical Mechanics», Postgraduate Student
I. A. Kolodyazhny
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Kolodyazhny llya Alekseevich, Chair «Transport Machines and Tribotechnics», Postgraduate Student
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Review
For citations:
Kolesnikov I.V., Shapovalov V.V., Kovalenko O.I., Polityko K.N., Kolodyazhny I.A. Application of wear-resistant PVD coatings on the friction surfaces of gears and gear couplings of a promising automatic transmission. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2024;(4):49-59. (In Russ.) https://doi.org/10.46973/0201-727X_2024_4_49
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