EFFECT OF W FIBER DIAMETER ON THE COMPRESSIVE MECHANICAL PROPERTIES OF THE Zr-BASED METALLIC GLASS COMPOSITES

ZHANG Bo; FU Huameng; ZHU Zhengwang; ZHANG Haifeng; DONG Chuang; HU Zhuangqi

doi:10.3724/SP.J.1037.2013.00230

Acta Metall Sin >

2013 , Vol. 49 >Issue 10: 1191 - 1200

DOI: https://doi.org/10.3724/SP.J.1037.2013.00230

EFFECT OF W FIBER DIAMETER ON THE COMPRESSIVE MECHANICAL PROPERTIES OF THE Zr-BASED METALLIC GLASS COMPOSITES

ZHANG Bo ,
FU Huameng ,
ZHU Zhengwang ,
ZHANG Haifeng ,
DONG Chuang ,
HU Zhuangqi

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1) College of Materials Science and Engineering, Dalian University of Technology, Dalian 116024
2) Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Received date: 2013-04-29

Revised date: 2013-07-10

Online published: 2013-10-11

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Abstract

The Zr-based metallic glass composite containing four kinds of W fibers with different diameters are prepared by infiltration casting method. The diameters of the W fibers are 1000, 700, 500 and 200μm,respectively. The effect of fiber diameter on the quasi-static and dynamic compressive mechanical properties and deformation behaviors of the composites was investigated. The results show that the quasi-static compressive properties improve with the decrease of the W fiber diameters, which is attributed to the increasing interface area and the size effect of the metallic glass matrix. Under dynamic compressive loading, the strain rate changes with the variation of the W fiber diameter at the same bullet firing pressure. The dynamic compressive strength and strain rate sensitivity exponent of the metallic glass composite with a fiber diameter of 500μm is the highest among the four W fiber/Zr-based metallic glass composites.

Key words： W fiber; metallic glass composite; shear band; strain rate; interface

Cite this article

ZHANG Bo , FU Huameng , ZHU Zhengwang , ZHANG Haifeng , DONG Chuang , HU Zhuangqi . EFFECT OF W FIBER DIAMETER ON THE COMPRESSIVE MECHANICAL PROPERTIES OF THE Zr-BASED METALLIC GLASS COMPOSITES[J]. Acta Metall Sin, 2013 , 49(10) : 1191 -1200 . DOI: 10.3724/SP.J.1037.2013.00230

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