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Tribological Behaviors of Self-lubricating Coating Prepared by Electrospark Deposition

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Abstract

Cu/h-BN self-lubricating coating was prepared on AISI1045 steel by electrospark deposition. The friction coefficient and wear rates were measured using the ball-on-disk method, and the tribological behaviors were discussed. Results showed that the friction coefficient decreased with an increase in sliding speed and load. The wear rate decreased with an increase in sliding speed and increased with an increase in load. The self-lubricating coating exhibited much lower friction coefficient and wear rate than the uncoated mild steel under the test condition. SEM micrographs show that the main wear mechanisms of the self-lubricating coating are abrasive wear and fatigue wear.

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Acknowledgments

This work is supported by “A Project of Shandong Province Higher Educational Science and Technology Program (J12LB11)” and “the Basic Research Program of Qingdao Science and Technology Project (11-2-4-3-(14)-jch).”

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  1. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, Shandong, China

    Tongkun Cao & Zhijian Xiao

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  1. Tongkun Cao
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  2. Zhijian Xiao
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Correspondence to Tongkun Cao.

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Cao, T., Xiao, Z. Tribological Behaviors of Self-lubricating Coating Prepared by Electrospark Deposition. Tribol Lett 56, 231–237 (2014). https://doi.org/10.1007/s11249-014-0403-3

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  • DOI: https://doi.org/10.1007/s11249-014-0403-3

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