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Effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets

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Abstract

In this paper, Ti(C,N)-based nano cermets were prepared by nano particles, and the effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets was investigated. The results showed that there existed black-core grayish-rim structure as well as gray-core grayish-rim structure in VC-doped Ti(C,N)-based nano cermets. With the increase of VC addition, the number of gray cores increased, the lattice parameter of Ti(C,N) phase increased, the grain size decreased, the hardness and fracture toughness of Ti(C,N)-based nano cermets were enhanced, and nearly full densification could be achieved. However, excessive addition of VC to 1 wt% resulted in slight decrease in hardness and fracture toughness. Some deep dimples were found in the fracture surface of cermets with VC addition, which corresponded to ductile fracture.

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Authors and Affiliations

  1. School of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065, China

    Xiayu Ying, Ji Xiong, Zhixing Guo, Jianzhong Chen, Sujian Xiong & Hongyuan Fan

  2. College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China

    Mei Yang

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  1. Xiayu Ying
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  2. Ji Xiong
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  3. Zhixing Guo
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  6. Mei Yang
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  7. Hongyuan Fan
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Correspondence to Ji Xiong.

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Ying, X., Xiong, J., Guo, Z. et al. Effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets. Rare Metals 30, 583–588 (2011). https://doi.org/10.1007/s12598-011-0433-z

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  • DOI: https://doi.org/10.1007/s12598-011-0433-z

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