Effect of Zener-Hollomon parameter on the flow behavior of Zr-based metallic glass

Z. F. Yao; J. C. Qiao; J. M. Pelletier; Y. Yao

doi:10.1016/j.jallcom.2019.152987

Effect of Zener-Hollomon parameter on the flow behavior of Zr-based metallic glass

Z. F. Yao
, J. C. Qiao
, J. M. Pelletier
, Y. Yao

School of Mechanics,Civil Engineering and Architecture

Army Academy of Border and Coastal Defence
Northwestern Polytechnical University Xian
MATEIS UMR5510

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

8 Scopus citations

Abstract

The constitutive behavior of Zr-based metallic glass ribbon around the glass transition temperature was investigated. The Zener-Hollomon equation was adopted to predict the flow stresses. The experimental results show that an exponent value of 0.75 and activation energy magnitude of 343 kJ/mol can be used in the hyperbolic sine model to predict the flow stress response of the steady-state stage. The activation energy is consistent with the free volume theory (335 kJ/mol). It is observed that the flow stress during steady-state is independent of the previously strain rate history and is only sensitivity to the current strain rate. A Z-parameter constitutive model to describe the hot deformation behavior of Zr-based metallic glass is developed.

Original language	English
Article number	152987
Journal	Journal of Alloys and Compounds
Volume	819
DOIs	https://doi.org/10.1016/j.jallcom.2019.152987
State	Published - 5 Apr 2020

Keywords

Constitutive equation
Deformation
Flow stress
Free volume
Metallic glass

Access to Document

10.1016/j.jallcom.2019.152987

Cite this

@article{c5f06e65c827468aaa14d889c2c363e0,

title = "Effect of Zener-Hollomon parameter on the flow behavior of Zr-based metallic glass",

abstract = "The constitutive behavior of Zr-based metallic glass ribbon around the glass transition temperature was investigated. The Zener-Hollomon equation was adopted to predict the flow stresses. The experimental results show that an exponent value of 0.75 and activation energy magnitude of 343 kJ/mol can be used in the hyperbolic sine model to predict the flow stress response of the steady-state stage. The activation energy is consistent with the free volume theory (335 kJ/mol). It is observed that the flow stress during steady-state is independent of the previously strain rate history and is only sensitivity to the current strain rate. A Z-parameter constitutive model to describe the hot deformation behavior of Zr-based metallic glass is developed.",

keywords = "Constitutive equation, Deformation, Flow stress, Free volume, Metallic glass",

author = "Yao, \{Z. F.\} and Qiao, \{J. C.\} and Pelletier, \{J. M.\} and Y. Yao",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = apr,

day = "5",

doi = "10.1016/j.jallcom.2019.152987",

language = "英语",

volume = "819",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Effect of Zener-Hollomon parameter on the flow behavior of Zr-based metallic glass

AU - Yao, Z. F.

AU - Qiao, J. C.

AU - Pelletier, J. M.

AU - Yao, Y.

PY - 2020/4/5

Y1 - 2020/4/5

N2 - The constitutive behavior of Zr-based metallic glass ribbon around the glass transition temperature was investigated. The Zener-Hollomon equation was adopted to predict the flow stresses. The experimental results show that an exponent value of 0.75 and activation energy magnitude of 343 kJ/mol can be used in the hyperbolic sine model to predict the flow stress response of the steady-state stage. The activation energy is consistent with the free volume theory (335 kJ/mol). It is observed that the flow stress during steady-state is independent of the previously strain rate history and is only sensitivity to the current strain rate. A Z-parameter constitutive model to describe the hot deformation behavior of Zr-based metallic glass is developed.

AB - The constitutive behavior of Zr-based metallic glass ribbon around the glass transition temperature was investigated. The Zener-Hollomon equation was adopted to predict the flow stresses. The experimental results show that an exponent value of 0.75 and activation energy magnitude of 343 kJ/mol can be used in the hyperbolic sine model to predict the flow stress response of the steady-state stage. The activation energy is consistent with the free volume theory (335 kJ/mol). It is observed that the flow stress during steady-state is independent of the previously strain rate history and is only sensitivity to the current strain rate. A Z-parameter constitutive model to describe the hot deformation behavior of Zr-based metallic glass is developed.

KW - Constitutive equation

KW - Deformation

KW - Flow stress

KW - Free volume

KW - Metallic glass

UR - https://www.scopus.com/pages/publications/85075356664

U2 - 10.1016/j.jallcom.2019.152987

DO - 10.1016/j.jallcom.2019.152987

M3 - 文章

AN - SCOPUS:85075356664

SN - 0925-8388

VL - 819

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 152987

ER -

Effect of Zener-Hollomon parameter on the flow behavior of Zr-based metallic glass

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this