Reversible structural relaxation and crystallization of Zr62Al8Ni13Cu17 bulk metallic glass

X. D. Wang; J. Z. Jiang; S. Yi

doi:10.1016/j.jnoncrysol.2007.06.045

Reversible structural relaxation and crystallization of Zr₆₂Al₈Ni₁₃Cu₁₇ bulk metallic glass

X. D. Wang, J. Z. Jiang, S. Yi

International Center for New-Structured Materials (ICNSM)

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

22 Scopus citations

Abstract

The effect of pre-treatment above glass transition temperature (T_g) on the reversible structural relaxation in a Zr₆₂Al₈Ni₁₃Cu₁₇ bulk metallic glass at sub-T_g annealing has been investigated. It is found that the enthalpy relaxation can be well described by a stretched exponential function. A free-volume model can only qualitatively simulate the process of enthalpy recovery. Sub-T_g heat treatments after enthalpy recovery have almost no effect on the following crystallization, which can be accelerated when critical clusters are formed for a longer time annealing.

Original language	English
Pages (from-to)	4157-4161
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	353
Issue number	44-46
DOIs	https://doi.org/10.1016/j.jnoncrysol.2007.06.045
State	Published - 15 Nov 2007

Keywords

Alloys
Amorphous metals
Calorimetry
metallic glasses
Nano-clusters
Short-range order
Structural relaxation

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10.1016/j.jnoncrysol.2007.06.045

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title = "Reversible structural relaxation and crystallization of Zr62Al8Ni13Cu17 bulk metallic glass",

abstract = "The effect of pre-treatment above glass transition temperature (Tg) on the reversible structural relaxation in a Zr62Al8Ni13Cu17 bulk metallic glass at sub-Tg annealing has been investigated. It is found that the enthalpy relaxation can be well described by a stretched exponential function. A free-volume model can only qualitatively simulate the process of enthalpy recovery. Sub-Tg heat treatments after enthalpy recovery have almost no effect on the following crystallization, which can be accelerated when critical clusters are formed for a longer time annealing.",

keywords = "Alloys, Amorphous metals, Calorimetry, metallic glasses, Nano-clusters, Short-range order, Structural relaxation",

author = "Wang, {X. D.} and Jiang, {J. Z.} and S. Yi",

year = "2007",

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T1 - Reversible structural relaxation and crystallization of Zr62Al8Ni13Cu17 bulk metallic glass

AU - Wang, X. D.

AU - Jiang, J. Z.

AU - Yi, S.

PY - 2007/11/15

Y1 - 2007/11/15

N2 - The effect of pre-treatment above glass transition temperature (Tg) on the reversible structural relaxation in a Zr62Al8Ni13Cu17 bulk metallic glass at sub-Tg annealing has been investigated. It is found that the enthalpy relaxation can be well described by a stretched exponential function. A free-volume model can only qualitatively simulate the process of enthalpy recovery. Sub-Tg heat treatments after enthalpy recovery have almost no effect on the following crystallization, which can be accelerated when critical clusters are formed for a longer time annealing.

AB - The effect of pre-treatment above glass transition temperature (Tg) on the reversible structural relaxation in a Zr62Al8Ni13Cu17 bulk metallic glass at sub-Tg annealing has been investigated. It is found that the enthalpy relaxation can be well described by a stretched exponential function. A free-volume model can only qualitatively simulate the process of enthalpy recovery. Sub-Tg heat treatments after enthalpy recovery have almost no effect on the following crystallization, which can be accelerated when critical clusters are formed for a longer time annealing.

KW - Alloys

KW - Amorphous metals

KW - Calorimetry

KW - metallic glasses

KW - Nano-clusters

KW - Short-range order

KW - Structural relaxation

UR - http://www.scopus.com/inward/record.url?scp=35148842066&partnerID=8YFLogxK

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M3 - Article

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SN - 0022-3093

VL - 353

SP - 4157

EP - 4161

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 44-46

ER -

Reversible structural relaxation and crystallization of Zr₆₂Al₈Ni₁₃Cu₁₇ bulk metallic glass

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Keywords

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