【摘要】 采用真空烧结和低压烧结两种工艺制备出（Ti,Mo）（C,N）-Mo₂C-10.0Ni金属陶瓷材料。利用光学显微镜和扫描电镜对合金微观组织结构特征进行观察与分析,并对比两种不同工艺制备的金属陶瓷刀片的耐磨性能。实验结果表明:两种烧结工艺制备的金属陶瓷样品微观组织结构均存在典型的"核-壳"结构;真空烧结工艺制备出的金属陶瓷样品硬度高,Ni相分布更加均匀;低压烧结工艺制备出的金属陶瓷刀片的耐磨性优于真空烧结工艺制备的刀片。更多还原

【Abstract】 A series of（Ti,Mo）（C,N）-Mo₂C-10.0 Ni metal ceramic were prepared by vacuum sintering and low-pressure sintering through traditional powder metallurgy method respectively. Optical microscopy（OM）, scanning electron microscopy（SEM） and energy dispersive spectroscopy（EDS） were used to characterize the microstructures of the two metal ceramics. The wear resistance property of（Ti,Mo）（C,N）-Mo₂C-10 Ni metal ceramics were also studied. The results show that both the metal ceramics prepared by vacuum sintering and sintering-HIP processes have the typical core-shell microstructure. The metal ceramic samples prepared by vacuum sintering have the higher hardness and more homogenization distribution of Co phase. The wear resistance property of the cutting inserts prepared by sintering-HIP is better than that prepared by vacuum sintering.更多还原