VC对TiC基金属陶瓷显微组织与力学性能的影响  

Effect of VC on Microstructure and Mechanical Properties of TiC-based Cermets

作　　者：陈敏 张雪峰 Chen Min;Zhang Xuefeng(College of Vanadium&Titanium,Panzhihua University,Panzhihua 617000,Sichuan,China)

机构地区：[1]攀枝花学院钒钛学院

出　　处：《钢铁钒钛》2019年第5期44-49,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)

摘　　要：结合BSE显微组织观察、EDS能谱分析、XRD物相检测和密度、硬度、抗弯强度测试,研究了VC添加量在不同烧结温度下对TiC基金属陶瓷显微组织和力学性能的影响。研究表明:TiC基金属陶瓷显微组织中的芯相和环相具有相同的晶体结构。随着VC含量的增加,TiC基金属陶瓷显微组织中的环相有粗化的趋势,烧结温度提高时环相粗化明显。当烧结温度为1340℃,VC添加量为4%时,TiC基金属陶瓷的综合性能较佳。The effect of VC addition amount on the microstructure and mechanical properties of the TiCbased cermet at different temperatures was investigated using BSE,EDS,XRD and density,hardness,bending strength tests.The results show that the core and rim phases in the TiC-based cermet have the same crystal structure.With increase in VC addition,grey rims in the cermet tend to be coarse,and the trend becomes more obvious at higher sintering temperatures.The best comprehensive properties of the TiC-based cermet can be obtained at 1340℃ of sintering temperature with 4% of VC added.

关 键 词：TIC基金属陶瓷 VC 显微组织 力学性能 

分 类 号：TF841.3[冶金工程—有色金属冶金] TB333[一般工业技术—材料科学与工程]