Physical-mechanical and tribotechnical properties of titanium alloys with Ti-C-Mo-S gradient antifriction coatings

V. M. Savostikov, A. I. Potekaev, A. N. Tabachenko, E. F. Dudarev, I. A. Shulepov

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    The results of comprehensive investigations of physico-mechanical and tribological properties of (α+β)-titanium alloys with Ti-C-Mo-S antifriction coatings using a coarse-grained VT14 alloy and a nanostructured VT6 alloy as examples are presented. The mechanisms of formation of physico-mechanical and tribological properties of titanium alloys with composite gradient coatings composed of Ti-C-Mo-S, which are deposited by low-temperature magnetron sputtering assisted by gas-discharge plasma treatment are revealed. A significant improvement of the properties of titanium alloys with these coatings is shown. It is found out that hardness of the coatings formed by plasma-assisted magnetron sputtering is higher compared to those deposited by conventional magnetron sputtering. Moreover, adhesion (bonding strength) of these coatings to the substrate is higher. Comparative tribological unlubricated friction tests demonstrated that the average friction coefficient decreased by a factor of 7.9-9.5 and the wear intensity of the surface layer decreased by 2-3 orders of magnitude.

    Original languageEnglish
    Pages (from-to)1056-1062
    Number of pages7
    JournalRussian Physics Journal
    Volume55
    Issue number9
    DOIs
    Publication statusPublished - 2013

    Keywords

    • adhesion
    • coarse-grained
    • friction coefficient
    • gradient coating
    • hardness
    • nanostructured
    • plasma-assisted magnetron sputtering
    • titanium alloys
    • wear resistance

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Savostikov, V. M., Potekaev, A. I., Tabachenko, A. N., Dudarev, E. F., & Shulepov, I. A. (2013). Physical-mechanical and tribotechnical properties of titanium alloys with Ti-C-Mo-S gradient antifriction coatings. Russian Physics Journal, 55(9), 1056-1062. https://doi.org/10.1007/s11182-013-9922-x