TC4合金基体上激光熔敷钛、铝、二氧化硅碳粉末的显微组织

材料与冶金学报, 2006, 5(4): 300-303. doi: 10.3969/j.issn.1671-6620.2006.04.015

TC4合金基体上激光熔敷钛、铝、二氧化硅碳粉末的显微组织

母久方 ^1, , 胡芳友 ^2, , 回丽 ^3, , 何雪浤 ^4, , 赵金 ^5,

1.东北大学

2.海军航空工程学院青岛分院

3.沈阳航空工业学院

4.Mechanical Engineering and Automation College, Northeastern University, Shenyang 110004, China

5.Mechanical Engineering and Automation College, Northeastern University, Shenyang 110004, China

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

Keywords： titanium alloy

Laser cladding experiment of Ti + Al + SiO2 + C was carried out on Ti6Al4V alloy substrate, thenthe 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.

参考文献

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