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| Microstructure and properties of nano-TiN modified Ti（C,N）-based cermets fabricated by powder injection molding and die pressing | |
| 作者姓名： | Shan-jie Yi Hai-qing Yini Ke Chen Dil-Faraz Khan Qing-jun Zheng Xuan-hui Qui |
| 作者单位： | [1]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China [2]Department of Physics, University of Science and Technology Bannu, Bannu 28100, Pakistan [3]Kennametal Inc., 1600 Technology Way Latrobe, PA 15650, USA |
| 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. |
| 关 键 词： | 纳米TiN 粉末注射成型 金属陶瓷 组织和性能 模压 改性 注塑 机械性能 |
Microstructure and properties of nano-TiN modified Ti(C,N)-based cermets fabricated by powder injection molding and die pressing |
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| Shan-jie Yi,Hai-qing Yini,Ke Chen,Dil-Faraz Khan,Qing-jun Zheng,Xuan-hui Qui.Microstructure and properties of nano-TiN modified Ti(C,N)-based cermets fabricated by powder injection molding and die pressing[J].International Journal of Minerals,Metallurgy and Materials,2013,20(11):1115-1121. | |
| Authors: | Shan-jie Yi Hai-qing Yin Ke Chen Dil-Faraz Khan Qing-jun Zheng Xuan-hui Qu |
| Institution: | 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China 2. Department of Physics, University of Science and Technology Bannu, Bannu, 28100, Pakistan 3. Kennametal Inc., 1600 Technology Way, Latrobe, PA, 15650, USA |
| Abstract: | 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. |
| Keywords: | cermets powder injection molding die pressing titanium nitride nanoparticles mechanical properties |
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