Influence of Mo2C and TaC additions on the microstructure and mechanical properties of Ti(C, N)-based cermets
Influence of Mo2C and TaC additions on the microstructure and mechanical properties of Ti(C, N)-based cermets
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DOI：
10.1016/j.ceramint.2015.10.168
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发表时间：
2016-02-01
影响因子：
5.2
通讯作者：
He, Y. H.
中科院分区：
文献类型：
--
作者：
Liu, C.;Lin, N.;He, Y. H.
采用粉末冶金法制备了Ti（C，N）基金属陶瓷，通过扫描电镜、X射线衍射和力学性能测试，研究了Mo 2C和TaC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Mo 2C和TaC含量的增加，芯/缘结构金属陶瓷的显微组织有细化的趋势。Mo 2C和TaC的加入提高了Ti（C，N）基金属陶瓷的力学性能。添加5wt%Mo2C和5wt%TaC的金属陶瓷表现出优异的硬度和断裂韧性值（HRA; 91.4; K-IC：13.5MPa m（1/2））。(C)2015 Elsevier Ltd和Techna Group S.r.l. All rights reserved.
In this paper, the effects of Mo2C and TaC additions on the microstructure and mechanical properties of Ti(C, N)-based cermets prepared through the powder metallurgical method were investigated by scanning electron microscopy, X-ray diffraction and mechanical properties tests. The results show that the microstructure of cermets with core/rim structure have a trend to become finer with increasing Mo2C and TaC content. The addition of Mo2C and TaC improve the mechanical properties of Ti(C, N)-based cermets. The cermets with 5 wt% Mo2C and 5 wt% TaC addition demonstrate excellent hardness and fracture toughness values (HRA; 91.4; K-IC: 13.5 MPa m(1/2)). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.