Effect of strain rate on yielding strength of a Zr-based bulk metallic glass

M. C. Li; M. Q. Jiang; S. Yang; F. Jiang; L. He; J. Sun

doi:10.1016/j.msea.2016.10.081

Effect of strain rate on yielding strength of a Zr-based bulk metallic glass

M. C. Li
, M. Q. Jiang
, S. Yang
, F. Jiang
, L. He
, J. Sun

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

63 Scopus citations

Abstract

Uniaxial tension and compression experiments were performed on a typical Zr_52.5Cu_17.9Ni_14.6Al₁₀Ti₅ (Vit 105) bulk metallic glass over a wide range of strain rates at room temperature. It is found that the strain rate effect of the yielding strength will change from insensitive to negative with increasing strain rate above a critical value. This phenomenon can be quantitatively described by a modified cooperative-shear model of shear transformation zones that takes the adiabatic temperature rise into account. The model predicts well the present and other experimental data.

Original language	English
Pages (from-to)	21-26
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	680
DOIs	https://doi.org/10.1016/j.msea.2016.10.081
State	Published - 5 Jan 2017

Keywords

Bulk metallic glasses
Free volume
Strain rate
Thermal softening
Yielding strength

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10.1016/j.msea.2016.10.081

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title = "Effect of strain rate on yielding strength of a Zr-based bulk metallic glass",

abstract = "Uniaxial tension and compression experiments were performed on a typical Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit 105) bulk metallic glass over a wide range of strain rates at room temperature. It is found that the strain rate effect of the yielding strength will change from insensitive to negative with increasing strain rate above a critical value. This phenomenon can be quantitatively described by a modified cooperative-shear model of shear transformation zones that takes the adiabatic temperature rise into account. The model predicts well the present and other experimental data.",

keywords = "Bulk metallic glasses, Free volume, Strain rate, Thermal softening, Yielding strength",

author = "Li, \{M. C.\} and Jiang, \{M. Q.\} and S. Yang and F. Jiang and L. He and J. Sun",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.msea.2016.10.081",

language = "英语",

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T1 - Effect of strain rate on yielding strength of a Zr-based bulk metallic glass

AU - Li, M. C.

AU - Jiang, M. Q.

AU - Yang, S.

AU - Jiang, F.

AU - He, L.

AU - Sun, J.

PY - 2017/1/5

Y1 - 2017/1/5

N2 - Uniaxial tension and compression experiments were performed on a typical Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit 105) bulk metallic glass over a wide range of strain rates at room temperature. It is found that the strain rate effect of the yielding strength will change from insensitive to negative with increasing strain rate above a critical value. This phenomenon can be quantitatively described by a modified cooperative-shear model of shear transformation zones that takes the adiabatic temperature rise into account. The model predicts well the present and other experimental data.

AB - Uniaxial tension and compression experiments were performed on a typical Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit 105) bulk metallic glass over a wide range of strain rates at room temperature. It is found that the strain rate effect of the yielding strength will change from insensitive to negative with increasing strain rate above a critical value. This phenomenon can be quantitatively described by a modified cooperative-shear model of shear transformation zones that takes the adiabatic temperature rise into account. The model predicts well the present and other experimental data.

KW - Bulk metallic glasses

KW - Free volume

KW - Strain rate

KW - Thermal softening

KW - Yielding strength

UR - https://www.scopus.com/pages/publications/84992708430

U2 - 10.1016/j.msea.2016.10.081

DO - 10.1016/j.msea.2016.10.081

M3 - 文章

AN - SCOPUS:84992708430

SN - 0921-5093

VL - 680

SP - 21

EP - 26

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Effect of strain rate on yielding strength of a Zr-based bulk metallic glass

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Keywords

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