文章摘要
张维平,刘中华,邹龙江.工艺参数对钛合金表面激光熔覆NiCrTiC涂层组织性能影响[J].,2009,(3):369-373
工艺参数对钛合金表面激光熔覆NiCrTiC涂层组织性能影响
Effect of processing parameters on microstructure of NiCrTiC coating by laser cladding on titanium alloy surface
  
DOI:10.7511/dllgxb200903012
中文关键词: 钛合金  激光熔覆  涂层  显微组织
英文关键词: titanium alloy  laser cladding  coating  microstructure
基金项目:大连市基金资助项目2006A10GX063).
作者单位
张维平,刘中华,邹龙江  
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中文摘要:
      利用激光熔覆工艺在TC4表面制备出原位自生TiC陶瓷颗粒增强Ni基复合材料涂层.利用OM、XRD、SEM、EDS、EPMA对涂层组织结构进行了研究.结果表明 当激光比能为12.5 kJ/cm 2时,可获得优异的复合涂层;复合涂层中以TiC为主的陶瓷颗粒增强相弥散地分布在β-Ti和γ-Ni两相固溶体中;涂层显微硬度比基体显著提高.
英文摘要:
      In-situ synthesis of TiC ceramic particle reinforced Ni-base alloy composite coating was produced on TC4 surface by laser cladding. Microstructure on the coating is studied by OM, XRD, SEM, EDS, EPMA . Results show that excellent coating is obtained when the laser power is 2.5 kJ/cm 2. Main phase in the coating is TiC particles distributing in the β-Ti and γ-Ni solid solution. The microhardness of the coating increases prominently compared with the matrix.
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