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Volume Fraction Effect of V8C7 Particulates on Impact Toughness and Wear Performance of V8C7/Fe Monolithic Composites |
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| Authors: | Fangxia Ye Mirabbos Hojamberdiev Yunhua Xu Lisheng Zhong Honghua Yan Zhe Chen |
| Affiliation: | 1. School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, 710048, People’s Republic of China 2. Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa, 226-8503, Japan 3. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China 4. Institute of Wear Resistant Materials, Xi’an University of Architecture and Technology, Xi’an, 710055, People’s Republic of China |
| Abstract: | The V8C7 particulates-reinforced iron-based metal matrix composite with 8-33 vol.% V8C7 was produced by infiltration casting process with subsequent heat treatment at 1164 °C for 3 h. With increasing the volume fraction of V8C7 in the composite, microhardness of the composite increases, while its impact toughness decreases. Relative wear resistance of the composite with different volume fractions of V8C7 was also investigated in this study. The composite with 24 vol.% V8C7 shows the highest relative wear resistance, which is much higher than that of gray cast iron. Microcracking, microploughing, and the fragmentation of particulates are found to be the dominant wear mechanisms. |
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