Thermal activation in the Zr65Cu18Ni7Al10 metallic glass by creep deformation and stress relaxation

C. Zhang; J. C. Qiao; J. M. Pelletier; Y. Yao

doi:10.1016/j.scriptamat.2015.11.001

Thermal activation in the Zr₆₅Cu₁₈Ni₇Al₁₀ metallic glass by creep deformation and stress relaxation

C. Zhang, J. C. Qiao, J. M. Pelletier, Y. Yao

School of Mechanics,Civil Engineering and Architecture

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

23 Scopus citations

Abstract

In the current study, jump stress creep and stress relaxation experiments were performed to Zr₆₅Cu₁₈Ni₇Al₁₀ metallic glass below the transition temperatures Tg. The viscoplasticity effect and transition between the Newtonian and non-Newtonian flow are investigated. The activation energy of creep is obtained from two theoretical methods. It is found that the activation volume of creep is more than that of stress relaxation, which is mainly caused by different organizational behaviors.

Original language	English
Pages (from-to)	180-184
Number of pages	5
Journal	Scripta Materialia
Volume	113
DOIs	https://doi.org/10.1016/j.scriptamat.2015.11.001
State	Published - 2016

Keywords

Creep
High temperature deformation
Metallic glasses
Stress relaxation
Thermally activated processes

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10.1016/j.scriptamat.2015.11.001

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title = "Thermal activation in the Zr65Cu18Ni7Al10 metallic glass by creep deformation and stress relaxation",

abstract = "In the current study, jump stress creep and stress relaxation experiments were performed to Zr65Cu18Ni7Al10 metallic glass below the transition temperatures Tg. The viscoplasticity effect and transition between the Newtonian and non-Newtonian flow are investigated. The activation energy of creep is obtained from two theoretical methods. It is found that the activation volume of creep is more than that of stress relaxation, which is mainly caused by different organizational behaviors.",

keywords = "Creep, High temperature deformation, Metallic glasses, Stress relaxation, Thermally activated processes",

author = "C. Zhang and Qiao, {J. C.} and Pelletier, {J. M.} and Y. Yao",

year = "2016",

doi = "10.1016/j.scriptamat.2015.11.001",

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volume = "113",

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journal = "Scripta Materialia",

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T1 - Thermal activation in the Zr65Cu18Ni7Al10 metallic glass by creep deformation and stress relaxation

AU - Zhang, C.

AU - Qiao, J. C.

AU - Pelletier, J. M.

AU - Yao, Y.

PY - 2016

Y1 - 2016

N2 - In the current study, jump stress creep and stress relaxation experiments were performed to Zr65Cu18Ni7Al10 metallic glass below the transition temperatures Tg. The viscoplasticity effect and transition between the Newtonian and non-Newtonian flow are investigated. The activation energy of creep is obtained from two theoretical methods. It is found that the activation volume of creep is more than that of stress relaxation, which is mainly caused by different organizational behaviors.

AB - In the current study, jump stress creep and stress relaxation experiments were performed to Zr65Cu18Ni7Al10 metallic glass below the transition temperatures Tg. The viscoplasticity effect and transition between the Newtonian and non-Newtonian flow are investigated. The activation energy of creep is obtained from two theoretical methods. It is found that the activation volume of creep is more than that of stress relaxation, which is mainly caused by different organizational behaviors.

KW - Creep

KW - High temperature deformation

KW - Metallic glasses

KW - Stress relaxation

KW - Thermally activated processes

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U2 - 10.1016/j.scriptamat.2015.11.001

DO - 10.1016/j.scriptamat.2015.11.001

M3 - 文章

AN - SCOPUS:84952313168

SN - 1359-6462

VL - 113

SP - 180

EP - 184

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Thermal activation in the Zr₆₅Cu₁₈Ni₇Al₁₀ metallic glass by creep deformation and stress relaxation

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Keywords

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