Effect of fiber volume fraction on the compressive properties of the W fiber/Zr-based metallic glass composites

被引：0
|
作者：
Zhang B. [1 ,2 ]
Fu H. [2 ]
Zhang H. [2 ]
Liu C. [1 ]
Wang J. [1 ]
机构：
[1] School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang
[2] Institute of Metal Research, Chinese Academy of Sciences, Shenyang
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2017年 / 34卷 / 08期
关键词：
Fiber volume fraction; Fracture mode; Plastic strain; Shear band; W[!sub]f[!/sub]/Zr-based metallic glass composites;
D O I：
10.13801/j.cnki.fhclxb.20161116.003
中图分类号：
学科分类号：
摘要：
The W fiber Wf/Zr-based metallic glass composites with different fiber volume fraction VF were prepared by infiltration and rapid solidification. The VF were 47%, 66%, 77% and 86%, respectively. The effect of VF on the quasi-static compression mechanical properties and deformation behavior of the Wf/Zr-based metallic glass composites was researched in detail. The results show that the yield strength of the Wf/Zr-based metallic glass composites increases with increase of the VF. The plastic strain firstly increases and then decreases with increase of the VF. The plastic strain is the largest when the VF is 66%. The change of the plastic strain in the Wf/Zr-based metallic glass composites mainly depends on the interaction between matrix and Wf. With increase of strain, the quantity and density of the shear bands in the matrix increase, and the main shear band deflects towards the direction more than 45°. The stress state in the end and middle of the Wf/Zr-based metallic glass composites sample is different during compression because of the influence of the pressure head, which results in the direction of the shear bands difference in different areas of the sample. The failure modes of the Wf/Zr-based metallic glass composites change from shear fracture to longitudinal splitting with the increase of the VF. The fracture behavior the Wf/Zr-based metallic glass composites complies with the Mohr-Coulomb criterion. © 2017, Chinese Society for Composite Materials. All right reserved.
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页码：1833 / 1838
页数：5
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