Effect of Mo2C/WC Ratio on Microstructure and Properties of Cermet
-
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。
-
关键词:
- Ti(C,N)基金属陶瓷 /
- Mo2C /
- WC /
- 组织 /
- 力学性能
Abstract: 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 1 411.15 and 1 053.7 MPa,respectively.-
Key words:
- Ti(C,N)-based cermet /
- Mo2C /
- WC /
- microstructure /
- mechanical properties
点击查看大图
计量
- 文章访问数: 28
- HTML全文浏览量: 9
- PDF下载量: 1
- 被引次数: 0