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Microstructure of laser clad Ti+Al+SiO2+C powders on Ti6Al4V alloy

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【作者】 母久方； 胡芳友； 回丽；

【Author】 MU Jiu-fang1,HU Fang-you2,HUI Li2,3,HE Xue-hong1,ZHAO Jin1 (1.Mechanical Engineering and Automation College,Northeastern University, Shenyang 110004, China; 2.Aeronautical Engineering Institute of the Navy, Qingdao Branch, Qingdao 266041, China; 3.Mechanical Engineering and Automation College,Shenyang Institute of Aeronautical Engineering, Shenyang 110034, China)

【机构】 东北大学； 海军航空工程学院青岛分院； 沈阳航空工业学院；

【Abstract】 Laser cladding experiment of Ti+Al+SiO2+C was carried out on Ti6Al4V alloy substrate, then the microstructure of the clad layer was analyzed with SEM and its Anti-oxidation function was discussed. Analyses microstructure show that the clad coating can be divided into three zones along the depth direction: clad, binding and heat-affected zones. Ti5Si3 in the clad zone exists in the form of fine dendrites, TiAl matrix filling among Ti5Si3 dendrites plays a role of connecting the Ti5Si3 with the TiAl3 and transferring load, so the clad coating has been strengthened obviously.

【关键词】 titanium alloy； laser cladding； Ti5Si3； TiAl； microstructure；
【Key words】 titanium alloy； laser cladding； Ti5Si3； TiAl； microstructure；
  • 【文献出处】 材料与冶金学报 ,Journal of Materials and Metallurgy , 编辑部邮箱 ,2006年04期
  • 【分类号】TG174
  • 【被引频次】4
  • 【下载频次】58
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