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PHASE CONSTITUENTS AND MICROSTRUCTURE OFTi3Al/Fe3Al + TiN/TiB2COMPOSITE COATING ON TITANIUM ALLOY

Author

Listed:
  • JIANING LI

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

  • CHUANZHONG CHEN

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

  • CUIFANG ZHANG

    (Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Ji'nan 250061, China)

Abstract

Laser cladding of theFe3Al + B4C/TiN + Al2O3pre-placed powders on theTi-6Al-4Valloy can form theTi3Al/Fe3Al + TiN/TiB2composite coating, which improved the wear resistance of theTi-6Al-4Valloy surface. In this study, theTi3Al/Fe3Al + TiN/TiB2composite coating has been researched by means of X-ray diffraction and scanning electron microscope. It was found that during the laser cladding process,Al2O3can react withTiB2, leading to the formations ofTi3AlandB. This principle can be used to improve theFe3Al + B4C/TiNlaser-cladded coating on theTi-6Al-4Valloy. Furthermore, during the cladding process,Cconsumed the oxygen inFe3Al + B4C /TiN + Al2O3molten pool, which retarded the productions of the redundant metal oxides.

Suggested Citation

  • Jianing Li & Chuanzhong Chen & Cuifang Zhang, 2011. "PHASE CONSTITUENTS AND MICROSTRUCTURE OFTi3Al/Fe3Al + TiN/TiB2COMPOSITE COATING ON TITANIUM ALLOY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 18(03n04), pages 103-108.
    • Handle: RePEc:wsi:srlxxx:v:18:y:2011:i:03n04:n:s0218625x11014527
    DOI: 10.1142/S0218625X11014527
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