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SLIDING WEAR BEHAVIOR OF ZrO2-CONTAINING PEO COATINGS FORMED ON ZL101A ALUMINUM ALLOY

Author

Listed:
  • YUANJI SHI

    (School of Mechanical Engineering, Nanjing Vocational University of Industry Technology, Nanjing Jiangsu 210046, P. R. China)

  • XUNZHONG GUO

    (#x2020;College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 210016, P. R. China)

  • HAIMING YU

    (#x2021;College of Engineering, Nanjing Agricultural University, Nanjing Jiangsu 210031 P. R. China)

  • JUNWAN LI

    (#xA7;School of Materials Science and Engineering, Shanghai University Shanghai 200072, P. R. China)

Abstract

In this paper, the Plasma electrolytic oxidation (PEO) coatings were formed in K2ZrF6-containing electrolyte with the addition of glycerin on aluminum alloy. PEO coating increased the tribological and mechanical properties of the aluminum alloy. The effect of frequency on the properties of PEO coatings was studied. AFM observation showed that the micropores number increased with the increasing frequency. XRD results showed that the content of α-Al2O3 ranged with the frequency increase. The coating formed in the electrolyte with the frequency of 800Hz was of the lowest friction coefficient and stablest curve. The glycerin is not only of ability to lower the defect of PEO coatings, but can also increase the wear resistance ability of the coatings.

Suggested Citation

  • Yuanji Shi & Xunzhong Guo & Haiming Yu & Junwan Li, 2021. "SLIDING WEAR BEHAVIOR OF ZrO2-CONTAINING PEO COATINGS FORMED ON ZL101A ALUMINUM ALLOY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(07), pages 1-10, July.
    • Handle: RePEc:wsi:srlxxx:v:28:y:2021:i:07:n:s0218625x21500682
    DOI: 10.1142/S0218625X21500682
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