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Surface Strengthening And Friction Wear Of The Inner Wall Of Liquid Sodium Hydrostatic Bearing

Author

Listed:
  • HUI YANG

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

  • XUEFENG YANG

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

  • JINLONG CAO

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

  • QIMIN HOU

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

  • JIAN CHENG

    (��College of Mechanical Engineering, Hubei University of Technology, Hubei 430068, P. R. China)

  • SHOUREN WANG

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

  • YALONG GAO

    (College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China)

Abstract

Sodium hydrodynamic bearings are parts which are easy to wear in order to improve the wear resistance of the inner wall and prolong the service life. In this paper, high-temperature element W was used as a variable to prepare cobalt-based alloy coatings with different contents of W. By testing the hardness and anti-wear performance of the coatings at high temperature, the microstructure and wear mechanism of the coatings were further analyzed in combination with crystal phase diagram and microscopic morphology diagram. The results show that the coefficient of friction of cobalt-based alloy coating decreases with the increase of W content under high-temperature dry rubbing, while the wear quantity increases with the increase of W content. Under high-temperature oil lubrication, the coefficient of friction of cobalt-based alloy coating is the lowest when the W content is 12%. The wear amount of cobalt-based alloy coating decreases with the increase of W content, and the wear mechanism changes from adhesion wear to abrasive wear with the increase of W content.

Suggested Citation

  • Hui Yang & Xuefeng Yang & Jinlong Cao & Qimin Hou & Jian Cheng & Shouren Wang & Yalong Gao, 2022. "Surface Strengthening And Friction Wear Of The Inner Wall Of Liquid Sodium Hydrostatic Bearing," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 29(03), pages 1-13, March.
    • Handle: RePEc:wsi:srlxxx:v:29:y:2022:i:03:n:s0218625x22500329
    DOI: 10.1142/S0218625X22500329
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