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TRIBOLOGICAL BEHAVIORS OF DUPLEX DLC/Al2O3COATINGS FABRICATED USING MICRO-ARC OXIDATION AND FILTERED CATHODIC VACUUM ARC SYSTEM

Author

Listed:
  • X. L. WU

    (Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University Beijing 100875, P. R. China)

  • X. J. LI

    (Department of Materials Science & Engineering, Beijing Normal University, Beijing 100875, P. R. China)

  • X. ZHANG

    (Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University Beijing 100875, P. R. China)

  • W. B. XUE

    (Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University Beijing 100875, P. R. China)

  • G. A. CHENG

    (Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University Beijing 100875, P. R. China)

  • A. D. LIU

    (Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University Beijing 100875, P. R. China)

Abstract

Micro-arc oxidation technique (MAO) treatment produces a layer of alumina film on the surface of the aluminum alloy. A hard and uniform tetrahedral amorphous carbon film (diamond-like carbon, DLC) was deposited on the top of the alumina layer of the 2024 aluminum alloy by a pulsed filtered catholic vacuum arc (FCVA) deposition system with a metal vapor vacuum arc (MEVVA) source. The morphology and tribological properties of the duplex DLC/Al2O3coating were investigated by a scanning electron microscope (SEM) and a ball-on-disk sliding tester. These results suggested that the duplex DLC/Al2O3coating had good adhesion and a low friction coefficient, which improved significantly the wear resistance of aluminum alloys.

Suggested Citation

  • X. L. Wu & X. J. Li & X. Zhang & W. B. Xue & G. A. Cheng & A. D. Liu, 2007. "TRIBOLOGICAL BEHAVIORS OF DUPLEX DLC/Al2O3COATINGS FABRICATED USING MICRO-ARC OXIDATION AND FILTERED CATHODIC VACUUM ARC SYSTEM," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(02), pages 193-197.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:02:n:s0218625x07009256
    DOI: 10.1142/S0218625X07009256
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