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Materials Science and Engineering of Powder Metallurgy  2023, Vol. 28 Issue (2): 93-112    DOI: 10.19976/j.cnki.43-1448/TF.2022069
Theoretical Research Current Issue | Archive | Adv Search |
Simulation of crack propagation and mechanical properties prediction of graphene-carbon nanotubes/WC ceramic tool materials
ZHAO Wenlong1, SUN Jialin2, HUANG Zhifu1, ZHAO Le3, LI Xiao3
1. State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China;
2. School of Mechanical, Electrical and Information Engineering, Shandong University (Weihai), Weihai 264209, China;
3. Weihai Weiying Tool Co., Ltd., Weihai 264210, China
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Abstract  The rapid development of computer simulation technology provides theoretical and technical support for the performance prediction and high-throughput preparation of ceramic tool materials. In this paper, a parametric model and mechanical property prediction model of WC ceramic tool materials containing graphene (G) and carbon nanotube (CNT) were constructed based on Python software. The influence of G-CNT on the microstructure and crack propagation behavior of tool materials was mainly studied. The results show that the three-dimensional G-CNT spatial structure can further improve the properties of WC ceramics compared with single G. When the mass fraction of G-CNT is 0.4%, the tool material has the best comprehensive mechanical properties. The strengthening and toughening mechanism mainly include the super-mixed distribution of G-CNT strong and weak interfaces, material fracture mode transformation, crack deflection, etc.
Key wordsWC ceramic tools      graphene-carbon nanotubes      microscale simulation      crack propagation      mechanical property prediction     
Received: 13 August 2022      Published: 04 May 2023
ZTFLH:  TG135  
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ZHAO Wenlong
SUN Jialin
HUANG Zhifu
ZHAO Le
LI Xiao
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ZHAO Wenlong,SUN Jialin,HUANG Zhifu, et al. Simulation of crack propagation and mechanical properties prediction of graphene-carbon nanotubes/WC ceramic tool materials[J]. Materials Science and Engineering of Powder Metallurgy, 2023, 28(2): 93-112.
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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2022069     OR     http://pmbjb.csu.edu.cn/EN/Y2023/V28/I2/93
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