【摘要】 通过正交试验法对WC/SiCW陶瓷复合材料进行了成分和热压工艺参数优化,经优化制备的该类复合材料与纯WC材料相比,抗弯强度提高了约50%,断裂韧性提高了30%~40%,维氏硬度提高了10%~15%。切削试验数据证明,本试验制得的WC/SiCW复合陶瓷刀具材料的车削性能优于同类型硬质合金材料,表明通过SiCW替代金属粘结相来增韧补强WC陶瓷刀具材料的方法是可行的。更多还原

【Abstract】 The composition and hot-pressing parameters of WC/SiC_W ceramic composite were optimized through orthogonal experiment.Compared with those of the pure WC,the bending strengh,fracture toughness and Vicker’s hardness of the optimized WC/SiC_W composite are increased by 50%,30%⁴0%,and 10%¹5% respectively.The cutting test results show that the optimized WC/SiC_W composite ceramic cutting tool material exhibit superior turning properties to similar hard alloy material,indicating that it is feasible to toughen the WC ceramic cutting tool material by using SiC_W instead of metallic binding phase.更多还原