Study on Sintering Process of Ti(C,N)-based Cermets
YAN Yong-lin1, ZHENG Yong1, LIU Wen-jun2, CHENG Xin1, ZHAO Neng-wei1
1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2. College of Mechanical and Materials Engineering, China Three Gorges University, Yichang 443002, Hubei, China
Abstract：Ti(C,N)-based cermets were produced by vacuum sintering.The effect of sintering temperature and holding time on the microstructure and mechanical properties of Ti(C,N)-based cermets was studied,and the fracture morphology was investigated by scanning electron microscope.The results show that,with the increasing of the sintering temperature,the microstructure of cermets became uniformity,and the ceramic grains got rounded,and the rim phase structure was completeness gradually.When the sintering temperature was too high or the holding time was too long,the rim phase was modified thicken,and the growing phenomenon of grains was abvious,the properties was decreased.The cermets sintered at 1440℃ for 60min showed the best mechanical properties.Their transverse rupture strength reached 1914.2MPa,and the hardness reached 90.1.
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YAN Yong-lin, ZHENG Yong, LIU Wen-jun, CHENG Xin, ZHAO Neng-wei. Study on Sintering Process of Ti(C,N)-based Cermets. Journal of Materials Engineering, 2008, 0(1): 49-53.
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