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Volume 27 Issue 4
Dec.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2003 >  27(4): 307-310

Citation:
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Microstructure of laser clad Ti+TiC powders on Ti-6Al-4V alloy substrate

  • 1.

    Institute of Machinery Manufacturing Technology, CAEP, Mianyang, 621900;

  • 2.

    Yang Dezhuang, Sun Ronglu (Harbin Institute of Technology, Harbn, 150001

  • Received Date: 2002-09-12
    Accepted Date: 2002-11-21
  • Laser cladding experiment of Ti+33%TiC was carried out on Ti-6Al-4V alloy substrate,then the microstructure of the clad layer was analyzed with SEM and its strengthening mechanism was discussed.Microstructure analyses show that the clad coating can be divided into three zones along the depth direction:clad,binding and heat-affected zones.TiC in the clad zone exists in the form of fine dendrites,Ti matrix filling among TiC dendrites play a role of connecting the TiC and transferring load,so the clad coating has been strengthened obviously.
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    [2] 陈赤囡,苏梅.北京航空航天大学学报,1998,24(3):253～255.
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    Sun R L,Yang D Z,Guo L X et al.Surface and Coatings Techno-logy,2000,132:251～255.
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    Sun R L,Yang D Z,Guo L X et al.Surface and Coatings Techno-logy,2001,135:307～312.
    [5] 张松,王茂才,毕红运 et al.摩擦学学报,1999,19(1):18～22.
    [6] 张松,张春华,吴维文 et al.金属学报,2001,37(3):315～320.
    [7] 张松,张春华,康熠平 et al.中国有色金属学报,2001,11(6):1026～1030.
    [8] 虞觉奇,易文质,陈邦迪.二元合金状态图集.上海:上海科学技术出版社,1987:252.
    [9] 编写组.稀有金属材料加工手册.北京:冶金工业出版社,1984:75.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Microstructure of laser clad Ti+TiC powders on Ti-6Al-4V alloy substrate

  • 1. Institute of Machinery Manufacturing Technology, CAEP, Mianyang, 621900;
  • 2. Yang Dezhuang, Sun Ronglu (Harbin Institute of Technology, Harbn, 150001
  • Received Date: 2002-09-12
  • Accepted Date: 2002-11-21
  • Available Online: 2003-07-25

Abstract: Laser cladding experiment of Ti+33%TiC was carried out on Ti-6Al-4V alloy substrate,then the microstructure of the clad layer was analyzed with SEM and its strengthening mechanism was discussed.Microstructure analyses show that the clad coating can be divided into three zones along the depth direction:clad,binding and heat-affected zones.TiC in the clad zone exists in the form of fine dendrites,Ti matrix filling among TiC dendrites play a role of connecting the TiC and transferring load,so the clad coating has been strengthened obviously.

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