ISSN 3041-1815. Physicochemical Mechanics of Materials. 2026.
Volume 62, Issue 4
Wear resistance of vacuum-arc nitride coatings deposited on nitrided 35KhM steel
Klimenko I. O. 
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Belous V. A.
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Podhurska V. Ya.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Ostash O. P.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Chepil R. V.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Vynar V. A.
Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Lviv, Ukraine. (https://ror.org/02jv3yx22)
Bortnytska M. O.
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Tolmachova G. M.
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Ovcharenko V. D.
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Ishchenko M. G.
JSC “Ukrainian Energy Machines”, Kharkiv, Ukraine.
Babayev I. M.
JSC “Ukrainian Energy Machines”, Kharkiv, Ukraine.
Kuprin O. S.
National Science Center “Kharkiv Institute of Physics and Technology”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine. (https://ror.org/00183pc12)
Keywords
steel, nitriding, vacuum arc coating, tribocouple, test temperature, structure, wear.
Cite as
Klimenko I. O., Belous V. A., Podhurska V. Ya., Ostash O. P., Chepil R. V., Vynar V. A., Bortnytska M. O., Tolmachova G. M., Ovcharenko V. D., Ishchenko M. G., Babayev I. M., and Kuprin O. S. Wear resistance of vacuum-arc nitride coatings deposited on nitrided 35KhM steel. Physicochemical Mechanics of Materials. 2026. 62(4), 32-40.
Abstract
The results of tribological tests at 20°C and 250°C of 35KHM steel in the initial state and after complex surface modification: nitriding and vacuum-arc TiN, CrN and Mo2N coatings deposition, are presented. Nitriding only slightly changes the tribological characteristics at 20°C, but at 250°C it contributes to an increase in the specific wear rate (W = 2×10–4 mm3/(N×m)). The TiN coating causes its decrease (W = 2×10–5 mm3/(N×m)), but it is characterized by a high and unstable friction coefficient at both test temperatures (µ = 0.75…1.06). The CrN coating demonstrates satisfactory tribological properties, especially at 20°C in a friction pair with a TiN-coated ball (μ = 0.38 and W = 1×10–7 mm3/(N×m)). The best results are demonstrated by the Mo2N coating in a pair with a TiN coating, which provides low stable friction coefficients (0.38–0.54) and a minimum specific wear rate (W = 1×10–7 mm3/(N×m)) regardless of the test temperature.