A Comparative Assessment of Tribotechnical Characteristics of Solid Lubricant Coatings Deposited Using the Closed Field Unbalanced Magnetron Sputtering Ion Plating Technique for Various Operating Conditions

This paper presents a comparative assessment of the tribotechnical characteristics of friction pairs with solid lubricant coatings (SLC) based on the MoS2 suspension application of VNII NP 212 and SLCCFUBMSIP deposited by the closed field unbalanced magnetron sputter ion plating (CFUBMSIP) of combined compositions MoS₂+Ti, MoS₂+Zr, MoS₂+Cr , MoS₂+W. It was established that under normal atmospheric conditions in the friction modes corresponding to the contact friction temperature of 157 °С, the life of SLCCFUBMSIP was 42.1% higher, and the coefficient of friction (ffr) was on average 2 times lower than that of SLC VNII NP 212. The average value of the life reduction coefficient for SLCCFUBMSIP during the transition from normal atmospheric conditions to water was 2.98. Under normal atmospheric conditions and in water, the SLCCFUBMSIP coefficient of friction was in the range of 0.02–0.04, and in an oil environment it ranged from 0.03 to 0.08. SLCCFUBMSIP based on pure MoS2 in normal atmospheric conditions, in water and oil was practically unusable.

References

[1] Renevier N.M., Hamphire J., Fox V.C., Witts J., Allen T., Teer D.G. Advantages of using self-lubricating, hard, wear-resistant MoS2-based coatings. Surface and Coatings Technology, 2001, 142–144, pp. 67–77, doi: 10.1016/S0257-8972(01)01108-2

[2] Khopin P.N. An Assessment of the Durability of Friction Couples with Solid Lubricant Coatings of Various Compositions Produced by Domestic and Foreign Manufacturers. Proceedings of Higher Educational Institutions. Маchine Building, 2018, no. 1, pp. 84–93 (in Russ.), doi: 10.18698/0536-1044-2018-1-84-93

[3] Breytueyt E.R. Tverdyye smazochnyye materialy i antifriktsionnyye pokrytiya [Solid lubricants and anti-friction coatings]. Moscow, Khimiya publ., 1967. 320 p.

[4] Krick B.A., Sawyer W.G. Space Tribometers: Design for Exposed Experiments on Orbit. Tribol Letters, 2011, vol. 41, pp. 303–311, doi: 10.1007/s11249-010-9689-y

[5] Wang H., Xu B., Liu J. Micro and Nano Sulfide Solid Lubrication. Science Press Beijing and Springer-Verlag, Berlin Heidelberg, 2012. 304 p.

[6] Miyoshi K. Solid Lubrication. Fundamentals and Applications. Characterization of Solid Surfaces. NASA Glenn Research Center, Cleveland, Ohio, Marcel Dekker Inc., New York, 2001. 400 p.

[7] Voevodin A.A., Zabinski J.S. Nanocomposite and nanostructured tribological materials for space applications. Composites Science and Technology, 2005, vol. 65, pp. 741–748, doi: https://doi.org/10.1016/j.compscitech.2004.10.008

[8] Drozdov Yu.N., Yudin E.G., Belov A.I. Prikladnaya tribologiya (treniye, iznos i smazka) [Applied tribology (friction, wear and lubrication)]. Moscow, EkoPress publ., 2010. 604 p.

[9] Pozdnyakov V.V., Buyanovskiy I.A. Effektivnyye metody umen’sheniya treniya (tverdyye smazki) [Effective methods for reducing friction (solid lubricants)]. Moscow, TSNIIPI publ., 1977. 52 p.

[10] Malenkov M.I., Karatushin S.I., Tarasov V.M. Konstruktsionnyye i smazochnyye materialy kosmicheskikh mekhanizmov [Construction and lubricants of space mechanisms]. Sankt-Petersburg, VOENMEH publ., 2007. 54 p.

[11] Teer D.G., Hampshire J., Fox V., Bellido-Gonzalez V. The tribological properties of MoS2/metal composite coatings deposited by closed field magne-tron sputtering. Surface and Coatings Technology, 1997, vol. 94–95, pp. 572–577.

[12] Teer D.G., Hampshire J.H., Bellido V. Improvements in and relating to methods for improving the sputter desposition of metal-sulphur coatings, e.g. molybdenum disulphide coatings and to improved coatings. Patent EU 96924987.9. 1996.

[13] Renevier N.M., Fox V.C., Teer D.G., Hampshire J. Coating characteristics and tribological properties of sputter-deposited MoS2/metal composite coatings deposited by closed field unbalanced magnetron sputter ion plating. Surface and Coatings Technology, 2000, vol. 127, pp. 24–37, doi: 10.1016/S0257-8972(00)00538-7

[14] Teer D.G. Magnetron Sputter Ion Plating. UK Patent GB 2258343B, 1990.

[15] Bellido-Gonzalez V., Jones A.H.S., Hampshire J., Allen T.J., Witts J., Teer D.G., Ma K.J., Upton D. Tribological behaviour of high performance MoS2 coatings produced by magnetron sputtering. Surface and Coatings Technology, 1997, vol. 97, pp. 687–693, doi: 10.1016/S0257-8972(97)00546-X

[16] Teer D.G., Bellido-Gonzalez V., Hampshire J.H. Improvements in and relating to methods for improving the sputter deposition of metal-sulphur coatings, e.g. MoS2 coatings, and to improved coatings. Patent no. 9615137.8 UK, 1996.

[17] Zhou Hui, Zheng Jun, Wen Qing-Ping, Wan Zhi-hua, Sang Rui-Peng. The effect of Ti content on the structural and mechanical properties of MoS2-Ti composite coatings deposited by unbalanced magnetron sputtering system. Physics Procedia, 2011, vol. 18, pp. 234–239, doi: 10.1016/j.phpro.2011.06.087

[18] Renevier N.M., Hamphire J., Fox V.C., Witts J., Allen T., Teer D.G. Advantages of using self-lubricating, hard, wear-resistant MoS2-based coatings. Surface and Coatings Technology, 2001, vol. 142–144, pp. 67–77, doi: 10.1016/S0257-8972(01)01108-2

[19] Khopin P.N., Trunova E.A. A Comparative Assessment of Efficiency of Foreign-Made Friction Pairs with Solid Lubricant Coating when in Sliding and Reverse Motion. Proceedings of Higher Educational Institutions. Маchine Building, 2018, no. 10, pp. 47–55 (in Russ.), doi: 10.18698/0536-1044-2018-10-47-55

[20] Khopin P.N., Kozlova O.V., Gorbach L.E. Durability evaluation for friction pairs with solid lubrication coatings under reverse motion. Journal of Friction and Wear, 2018, vol. 39, no. 6, pp. 505–511, doi: 10.3103/S1068366618060053

[21] Khopin P.N. Assessment of antifriction characteristics of friction pairs with solid-lubricating coatings under various operating conditions. Journal of Friction and Wear, 2015, vol. 36, no. 5, pp. 374–379, doi: 10.3103/S1068366615050074

[22] Sentyurikhina L.N., Rubtsova Z.S. Naneseniye tverdykh smazochnykh pokrytiy, soderzhashchikh disul’fid molibdena, na poverkhnosti treniya [Applying a solid lubricant coating containing molybdenum disulfide on the surface of the friction]. Moscow, Khimiya publ., 1967. 12 p.

[23] Gonzalez D. Process Specification for Dry-Film Lubricant Application. PRC-8001 Rev. F. NASA, Johnson Space Center, Houston, Texas, 2019. 13 p.