摘要
以TiC、TiN、Mo2C、WC、Co、Ni为原料,采用粉末冶金法制备Ti(C,N)基金属陶瓷。结合XRD物相检测、显微组织分析以及力学性能测试研究了Mo2C/(WC+Mo2C)对Ti(C,N)基金属陶瓷显微组织和力学性能的影响。结果表明:随着Mo2C/(WC+Mo2C)的增加,Ti(C,N)基金属陶瓷的硬度逐渐增加,抗弯强度先降低后增加。当Mo2C/(WC+Mo2C)=0.8时,Ti(C,N)基金属陶瓷的显微组织细化明显,综合力学性能最佳,维氏硬度(HV)为1 411.15,抗弯强度为1 053.7 MPa。
Ti(C,N)-based cermets were prepared by powder metallurgy using TiC,TiN,Mo2C,WC,Co and Ni as raw materials.The effects of Mo2C/(WC+Mo2C)ratio on the microstructure and mechanical properties of Ti(C,N)-based cermets were investigated by XRD,SEM and mechanical properties test.The results show that with the increase of Mo2C/(WC+Mo2C),the hardness of Ti(C,N)-based cermets increases gradually,and the bending strength decreases first and then increases.At Mo2C/(WC+Mo2C)=0.8,the microstructure of Ti(C,N)-based cermets is refined significantly and the comprehensive mechanical properties are the best,with the Vickers hardness(HV)and bending strength reaching 1411.15 and 1053.7 MPa,respectively.
作者
马一川
张雪峰
陈敏
张宁
Ma Yichuan;Zhang Xuefeng;Chen Min;Zhang Ning(College of Materials Science and Engineering,Xihua University,Chengdu 610039,Sichuan,China;Panzhihua University,Panzhihua 617000,Sichuan,China)
出处
《钢铁钒钛》
CAS
北大核心
2020年第2期42-47,共6页
Iron Steel Vanadium Titanium
基金
四川省科技支撑计划项目(No.2018GZ0453,No.2017GZ0417)
攀枝花市科技支撑项目(No.2018CY-G-7)。
