High power arc ion plating of thick Cr2N hard coating on Ti-based alloys: Oxidation and wear behaviors

Wu, Jiaojiao; Shen, Mingli; Wang, Wei; Cheng, Yuxian; Zhu, Shenglong

doi:10.1016/j.surfcoat.2022.128924

Cited by 5 publications

(1 citation statement)

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“…The high protective properties of TiN coatings deposited at elevated nitrogen pressure of 1...3 Pa allowed the selection of conditions for the synthesis of the optimal coating for the strengthening of steam turbine blades made of Ti-6Al-4V alloy [2]. The tribological properties of TiN and CrN coatings deposited by cathodic arc deposition have been extensively studied [3][4][5][6][7]. However, for specific technical applications of protective coatings, it is necessary to determine the influence of deposition process parameters on the wear resistance of the substrate-coating pair [8,9].…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties at 20 and 500°C of TiN and CrN Cathodic ARC Coatings Deposited on Ti-6Al-4V Alloy

Klimenko,

Belous,

Podhurska

et al. 2024

East Eur. J. Phys.

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Tribological properties of TiN and CrN coatings deposited by cathodic arc method at three different bias potentials -50, -150 and -300V on Ti-6Al-4V alloy in pair with alumina have been investigated. X-ray diffraction analysis showed that single-phase textured cubic nitrides of TiN and CrN were formed in these coatings. It is shown that the friction coefficient of the coatings is practically equal to that established for the Ti6Al4V alloy, but the wear rate is more than an order of magnitude lower than for the titanium alloy substrate. Coatings deposited at a potential of -50 V show optimal tribological properties at temperatures 20 and 500°C. Friction coefficients for TiN coatings are 0.4-0.8 at 20°C and 0,75 at 500°C; for CrN coatings they are 0.5 at 20°C and 0,7 at 500°C. Wear rates for TiN coatings are 0.86·10-5 мм3/Нм at 20°C and 3.56·10-5 мм3/Нм at 500°C; for CrN coatings they are 1.43·10-5 мм3/Нм at 20°C and 7.13·10-5 мм3/Нм at 500°C.

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