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    Volume 48, Issue 6 (November 2020)

    Tribological Properties of Chemical Vapor Deposited Diamond Film on YT14 Cemented Carbide under Water Lubrication Condition

    (Received 20 January 2018; accepted 27 August 2018)

    Published Online: 2019

    CODEN: JTEVAB

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    Abstract

    A diamond film was deposited on YT14 cemented carbide using chemical vapor deposition technique. The surface and cross-section morphologies and chemical compositions of obtained diamond film were analyzed using a scanning electron microscope, energy dispersive spectroscopy, Raman spectroscope, and X–ray diffractometer, respectively. The friction and wear tests of diamond film under the water lubrication condition were conducted using a wear tester with the minimum quantity lubrication system, and the effects of wear loads on tribological properties of diamond film were also discussed. The results show that the chemical vapor deposited diamond film is primarily composed of diamond (111) peak, and its hardness, elastic modulus, bonding strength, and roughness are 16.27 GPa, 166.18 GPa, 26.2 N, and 79.2 nm, respectively. Under the water lubrication condition, the average coefficients of friction (COF) of diamond film under the wear loads of 4, 6, and 8 N are 0.117, 0.139, and 0.163, respectively, and the corresponding wear rates of diamond film under the wear loads of 4, 6, and 8 N are 3.87 × 10−7, 4.26 × 10−7, and 4.67 × 10−7 mm3/N • m. This shows that the average COFs and wear rates increase with an increase of wear loads and that the wear mechanism is abrasive wear.

    Author Information:

    Dejun, Kong
    Changzhou University, Changzhou,

    Ling, Zhang
    Changzhou University, Changzhou,


    Stock #: JTE20180043

    ISSN:0090-3973

    DOI: 10.1520/JTE20180043

    Author
    Title Tribological Properties of Chemical Vapor Deposited Diamond Film on YT14 Cemented Carbide under Water Lubrication Condition
    Symposium ,
    Committee D01