Abstract
A comprehensive study of phase composition, structural state, parameters of fine atomic structure, mechanical and tribological properties of molybdenum-carbon and tungsten-carbon-based coatings deposited by reactive magnetron sputtering in an acetylene-argon gas mixture has been carried out. It has been shown that the resulting coatings have a nanocomposite diamond-like carbon (DLC) structure based on the metal and the metal carbide phases with close sizes of coherently diffracting domains (CDD), ~3–7 nm, and on hydrogenated amorphous carbon. The coating nanohardness values were 13–15 and 20–23 GPa for the Mo-DLC and W-DLC coatings, respectively. The tribological tests have demonstrated that the Mo- and W-DLC coatings can reduce friction and effectively protect the steel surfaces hardened by them both under dry friction and under boundary lubrication conditions.
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Avdyukhina, V.M., Khrushchov, M.M., Sulyandziga, D.A. et al. X-ray Diffraction Studies of the Effect of Phase Composition and Structural State Characteristics on the Tribological Behavior of the Molybdenum- and Tungsten-based Strengthening Coatings. Crystallogr. Rep. 68, 468–477 (2023). https://doi.org/10.1134/S1063774523700189
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DOI: https://doi.org/10.1134/S1063774523700189