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MENG Junsheng, JI Zesheng. Microstructure and properties of in-situ TiC-TiB2/Ti composite coating by argon arc cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (9): 67-70.
Citation: MENG Junsheng, JI Zesheng. Microstructure and properties of in-situ TiC-TiB2/Ti composite coating by argon arc cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (9): 67-70.
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Microstructure and properties of in-situ TiC-TiB2/Ti composite coating by argon arc cladding

  • 1.

    School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China;School of Materials Science & Engineering, Heilongjiang University of Science and Technology, Harbin 150027, China

  • 2.

    School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China

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  • Received Date: April 16, 2012
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    • Abstract
  • TiC-TiB2 p/Ti composite was in-situ synthesized on the TC4 alloy surface by using argon arc cladding.The microstructure of the coating was investigated by scanning electron microscope (SEM) and X-ray diffraction (XRD),and the microhardness of the coating was measured.The results show that the main phases in the coating were TiC,TiB2 and Ti(Ni, Cr),with TiB2 phases in rod-like form.Excellent bonding between the coating and TC4 substrate occurred without pores or cracking,and fine TiC and TiB2 particles uniformly distributed in the coating.The microstructure was different from the outside to the inside in the clad coating.The microhardness of coating was 13818MPa,improved about 4.5 times than the TC4 alloy substrate.
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