Wear Resistance of Amorphous-Crystalline Coatings with Lubricants
Tóm tắt
The results of tests of a Zr–Al–B boundary friction detonation coating in a wide range of changes under friction conditions have been presented. A comparative analysis of the obtained characteristics of friction and wear in order to evaluate the tribotechnical properties of amorphous-crystalline coatings has been carried out. These results have been compared with parallel tests of coatings based on tungsten carbide, samples of hardened steel and bronze, and the bearing of the sliding layer. The formation of solid solutions has been established and the introduction of oxygen in zirconium that corresponds to the formation on the friction surfaces of the secondary structures of the first type, a characteristic feature of which is their surface localization, ultra-dispersed structure, and ability to minimize disruption and shield unacceptable adhesion phenomena. The use of the Auger electron microscope confirmed that oxygen completely replaces the sulfur in the surface structures.
Tài liệu tham khảo
Forbes, E., Antiwear and extreme pressure additives for lubricants, Tribology, 2008, vol. 3, no. 3, pp. 145–152.
Bollani, G., Failure criteria then film lubrication with E Padditives, Wear, 2009, vol. 36, no. 1, pp. 19–29.
Chichinadze, A.V., Matveevskii, R.M., Braun, E.D., et al., Materialy v tribotekhnike nestatsionarnykh protsessov (Materials in Tribotechnics of Nonstationary Processes), Moscow: Nauka, 1986.
Akin, L., An interdiscipllinary lubrication theory for gear, ASME Trans., 1993, vol. 36, no. 4, pp. 1178–1195.
Kharchenko, O.V., Shchepetov, V.V., Yakovleva, M.S., et al., UA Patent 82902, Byull. Izobret., 2013, no. 16.
Nosovskii, I.G., Shchepetov, V.V., and Marchuk, V.E., Detonation coatings for protection of friction units from wear, in Nauka i oborona (Science and Defense), Kiev: Varta, 1999, pp. 126–135.
Manukhin, A.B., Boyur, S.D., and Buler, P.I., Determination of the amount of crystalline phase in rapidly quenched alloys, in Fizika i khimiya amorfnykh metallicheskikh splavov (Physics and Chemistry of Amorphous Metal Alloys), Moscow: Nauka, 1985, 40–42.
Chen, H.S., Metallic glasses, Mater. Sci. Eng., 2004, vol. 25, pp. 59–69.
Babak, V.P., Baisa, D.F., Rizak, V.M., and Filonenko, S.F., Konstruktsiini ta funktsional’ni materiali (Construction and Functional Materials), Kyiv: Tekhnika, 2003.
Harris, T.A., Rolling Bearing Analysis, New York: Wiley, 2006.
Wandelt, K. and Erte, G., Electron spectroscopic studies of the oxidation of Fe/Ni alloys, Surf. Sci., 1999, vol. 55, no. 2, pp. 403–412.
Leygraf, G. and Hultguist, G., Initial oxidation stages on Fe–Cr surface, Surf. Sci., 2002, vol. 61, no. 11, pp. 69–84.
Hermance, H. and Egan, T., The examination of electric contacts by the plastic replica method, Trans. Am. Inst. Electr. Eng., Part 1, 1987, vol. 76, no. 6, pp. 756–763.