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Influence Of Surface Polishing On The Friction Behaviors Of Nbr

Author

Listed:
  • BINGQI JIANG

    (State Key Laboratory of Tribology, Tsinghua University, Beijing, P. R. China)

  • XIAOHONG JIA

    (State Key Laboratory of Tribology, Tsinghua University, Beijing, P. R. China)

  • FEI GUO

    (State Key Laboratory of Tribology, Tsinghua University, Beijing, P. R. China)

  • YUMING WANG

    (State Key Laboratory of Tribology, Tsinghua University, Beijing, P. R. China)

Abstract

An experimental study on the tribology behavior and mechanism of NBR-Steel pair has been carried out. Abrasive paper was used to polish the NBR surface. The influences of surface topography on the friction coefficient were investigated based on the block-on-ring tribometer. Results show that polishing with abrasive paper is an effective method to reduce the friction coefficient of NBR on steel. Superlubricity was also found in the test. A new method to explain the superlubricity based on the contact angle and surface molecular structure was put forward in this work. Abrasive paper polishing changes the surface asperities, so affects the contact angle, so as to influence the boundary limiting shearing strength, and then causes the superlubricity. During the friction process the microstructure obviously changed, along with mechanical breaking of the molecular chain.

Suggested Citation

  • Bingqi Jiang & Xiaohong Jia & Fei Guo & Yuming Wang, 2018. "Influence Of Surface Polishing On The Friction Behaviors Of Nbr," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(07), pages 1-8, October.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:07:n:s0218625x19500161
    DOI: 10.1142/S0218625X19500161
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