Microstructure and properties of nano-TiN modified Ti(C,N)-based cermets fabricated by powder injection molding and die pressing

被引：0
作者：
Shan-jie Yi
Hai-qing Yin
Ke Chen
Dil-Faraz Khan
Qing-jun Zheng
Xuan-hui Qu
机构：
[1] University of Science and Technology Beijing,School of Materials Science and Engineering
[2] University of Science and Technology Bannu,Department of Physics
[3] Kennametal Inc.,undefined
来源：
International Journal of Minerals, Metallurgy, and Materials | 2013年 / 20卷
关键词：
cermets; powder injection molding; die pressing; titanium nitride; nanoparticles; mechanical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Powder injection molding (PIM) and die pressing were employed to fabricate nano-TiN modified Ti(C,N)-based cermets. The shrinkage behavior, microstructure, porosity, and mechanical properties of the samples with and without nano-TiN addition fabricated by PIM and die pressing were analyzed. It is demonstrated that for either PIM or die pressing, the porosities are obviously reduced, the mechanical properties are significantly improved after adding nano-TiN, and the hard particles are refined; the rim phase thickness obviously becomes thinner, and the number of dimples in fracture also increases. Compared the samples fabricated by die pressing, it is difficult for PIM to obtain dense Ti(C,N)-based cermets. Due to the too much existence of pores and isolated carbon, the mechanical properties of the sintered samples by PIM are inferior to those of the sintered ones by die pressing.
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页码：1115 / 1121
页数：6
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