Abstract
The tribological properties under extreme conditions, structure, and chemical composition of antifriction coatings based on molybdenum disulfide deposited by magnetron deposition and suspension spraying with various types of a film former onto the surface of samples made of 12Kh18N10T stainless steel are studied. Tribological reciprocating movement tests in accordance with the ASTM G133 standard are carried out under reciprocating movement of a ball made of ShKh15 steel with a diameter of 6.35 mm in vacuum at the temperature of the samples of 250°C. The coefficient of friction and lifetime of the coatings under extreme operating conditions are determined. Suspension deposited coatings show a coefficient of friction of 0.046–0.049, and the magnetron deposited coating of 0.061. The maximum service life of the suspension deposited coatings is 19.7–21.8 h, and of the magnetron deposited coating, 22.7 h.
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ACKNOWLEDGMENTS
The authors are grateful to M.I. Prudnikov, OOO Modenzhi, as well as the National Research Nuclear University (MEPhI) for preparation of the samples.
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Translated by E. Boltukhina
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Prozhega, M.V., Reschikov, E.O., Konstantinov, E.O. et al. Tribological Properties of Antifriction Molybdenum Disulfide Coatings under Extreme Conditions. J. Frict. Wear 43, 423–430 (2022). https://doi.org/10.3103/S1068366622060125
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DOI: https://doi.org/10.3103/S1068366622060125