Effect of W volume fraction on dynamic mechanical behaviors of W fiber/Zr-based bulk metallic glass composites

Yunfei Xue; Xin Zhong; Lu Wang; Qunbo Fan; Lijun Zhu; Bin Fan; Haifeng Zhang; Huameng Fu

doi:10.1016/j.msea.2015.05.086

Effect of W volume fraction on dynamic mechanical behaviors of W fiber/Zr-based bulk metallic glass composites

Yunfei Xue^*
, Xin Zhong
, Lu Wang
, Qunbo Fan
, Lijun Zhu
, Bin Fan
, Haifeng Zhang
, Huameng Fu

^*Corresponding author for this work

School of Material Science and Engineering

CAS - Institute of Semiconductors
Beijing Institute of Technology
Ningbo Branch of China Academy of Ordnance Science
CAS - Institute of Metal Research

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The effect of W volume fraction (V_f) on dynamic mechanical behavior of W fiber/Zr-based bulk metallic glass composites (W_f/BMGCs) was investigated by split Hopkinson pressure bar (SHPB) and finite element method (FEM). The yield strength increased with the increase of V_f under both quasi-static and dynamic compression, and the dynamic flow stress is obviously greater than that under quasi-static compression. The fracture strain also increased with the increase of V_f under dynamic compression, which is different from that the composite with ~70vol% W exhibited the highest fracture strain under quasi-static compression. With the increase of V_f under both quasi-static and dynamic compression, the failure mode of the composites changed from shearing to a mixture of shearing and splitting, and lastly only splitting. High strain rate suppressed macro-shearing but promoted micro-shearing and splitting compared to that under low strain rate, which is suggested to be the reason why the composites exhibited different rules of strain rate-related fracture strain under quasi-static and dynamic compression.

Original language	English
Pages (from-to)	417-424
Number of pages	8
Journal	Materials Science and Engineering: A
Volume	639
DOIs	https://doi.org/10.1016/j.msea.2015.05.086
Publication status	Published - 2015

Keywords

Bulk metallic glass (BMG)
Composite
Dynamic compression
Finite element method (FEM)
Volume fraction
W fiber

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10.1016/j.msea.2015.05.086

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title = "Effect of W volume fraction on dynamic mechanical behaviors of W fiber/Zr-based bulk metallic glass composites",

abstract = "The effect of W volume fraction (Vf) on dynamic mechanical behavior of W fiber/Zr-based bulk metallic glass composites (Wf/BMGCs) was investigated by split Hopkinson pressure bar (SHPB) and finite element method (FEM). The yield strength increased with the increase of Vf under both quasi-static and dynamic compression, and the dynamic flow stress is obviously greater than that under quasi-static compression. The fracture strain also increased with the increase of Vf under dynamic compression, which is different from that the composite with \textasciitilde{}70vol\% W exhibited the highest fracture strain under quasi-static compression. With the increase of Vf under both quasi-static and dynamic compression, the failure mode of the composites changed from shearing to a mixture of shearing and splitting, and lastly only splitting. High strain rate suppressed macro-shearing but promoted micro-shearing and splitting compared to that under low strain rate, which is suggested to be the reason why the composites exhibited different rules of strain rate-related fracture strain under quasi-static and dynamic compression.",

keywords = "Bulk metallic glass (BMG), Composite, Dynamic compression, Finite element method (FEM), Volume fraction, W fiber",

author = "Yunfei Xue and Xin Zhong and Lu Wang and Qunbo Fan and Lijun Zhu and Bin Fan and Haifeng Zhang and Huameng Fu",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

doi = "10.1016/j.msea.2015.05.086",

language = "English",

volume = "639",

pages = "417--424",

journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Effect of W volume fraction on dynamic mechanical behaviors of W fiber/Zr-based bulk metallic glass composites

AU - Xue, Yunfei

AU - Zhong, Xin

AU - Wang, Lu

AU - Fan, Qunbo

AU - Zhu, Lijun

AU - Fan, Bin

AU - Zhang, Haifeng

AU - Fu, Huameng

PY - 2015

Y1 - 2015

N2 - The effect of W volume fraction (Vf) on dynamic mechanical behavior of W fiber/Zr-based bulk metallic glass composites (Wf/BMGCs) was investigated by split Hopkinson pressure bar (SHPB) and finite element method (FEM). The yield strength increased with the increase of Vf under both quasi-static and dynamic compression, and the dynamic flow stress is obviously greater than that under quasi-static compression. The fracture strain also increased with the increase of Vf under dynamic compression, which is different from that the composite with ~70vol% W exhibited the highest fracture strain under quasi-static compression. With the increase of Vf under both quasi-static and dynamic compression, the failure mode of the composites changed from shearing to a mixture of shearing and splitting, and lastly only splitting. High strain rate suppressed macro-shearing but promoted micro-shearing and splitting compared to that under low strain rate, which is suggested to be the reason why the composites exhibited different rules of strain rate-related fracture strain under quasi-static and dynamic compression.

AB - The effect of W volume fraction (Vf) on dynamic mechanical behavior of W fiber/Zr-based bulk metallic glass composites (Wf/BMGCs) was investigated by split Hopkinson pressure bar (SHPB) and finite element method (FEM). The yield strength increased with the increase of Vf under both quasi-static and dynamic compression, and the dynamic flow stress is obviously greater than that under quasi-static compression. The fracture strain also increased with the increase of Vf under dynamic compression, which is different from that the composite with ~70vol% W exhibited the highest fracture strain under quasi-static compression. With the increase of Vf under both quasi-static and dynamic compression, the failure mode of the composites changed from shearing to a mixture of shearing and splitting, and lastly only splitting. High strain rate suppressed macro-shearing but promoted micro-shearing and splitting compared to that under low strain rate, which is suggested to be the reason why the composites exhibited different rules of strain rate-related fracture strain under quasi-static and dynamic compression.

KW - Bulk metallic glass (BMG)

KW - Composite

KW - Dynamic compression

KW - Finite element method (FEM)

KW - Volume fraction

KW - W fiber

UR - https://www.scopus.com/pages/publications/84930638074

U2 - 10.1016/j.msea.2015.05.086

DO - 10.1016/j.msea.2015.05.086

M3 - Article

AN - SCOPUS:84930638074

SN - 0921-5093

VL - 639

SP - 417

EP - 424

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Effect of W volume fraction on dynamic mechanical behaviors of W fiber/Zr-based bulk metallic glass composites

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Keywords

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