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MICROSTRUCTURE AND WEAR PROPERTIES OF COMPOSITE COATINGS PRODUCED BY LASER CLADDING OFTi-6Al-4VWITH GRAPHITE AND SILICON MIXED POWDERS

Author

Listed:
  • Y. S. TIAN

    (School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, P. R. China)

  • C. Z. CHEN

    (School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, P. R. China)

  • D. Y. WANG

    (School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, P. R. China)

  • Q. H. HUO

    (School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, P. R. China)

  • T. Q. LEI

    (School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China)

Abstract

Composite coatings are fabricated by laser cladding of titanium alloyTi-6Al-4Vwith graphite and silicon mixed powders. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) indicate that the coatings mainly consist of pre-eutecticTiCand eutecticTi5Si3compounds. Test results show that the coatings exhibit a higher microhardness and a lower friction coefficient compared with the as-received sample. EPMA micrographs show that the compounds' morphology in the top zone of the coatings is different from that in the transitional zone.

Suggested Citation

  • Y. S. Tian & C. Z. Chen & D. Y. Wang & Q. H. Huo & T. Q. Lei, 2005. "MICROSTRUCTURE AND WEAR PROPERTIES OF COMPOSITE COATINGS PRODUCED BY LASER CLADDING OFTi-6Al-4VWITH GRAPHITE AND SILICON MIXED POWDERS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 12(02), pages 161-165.
    • Handle: RePEc:wsi:srlxxx:v:12:y:2005:i:02:n:s0218625x05006883
    DOI: 10.1142/S0218625X05006883
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