Crystallization kinetics of an Au-based metallic glass upon ultrafast heating and cooling

F. X. Bai; J. H. Yao; Y. X. Wang; J. Pan; Y. Li

doi:10.1016/j.scriptamat.2017.02.001

Crystallization kinetics of an Au-based metallic glass upon ultrafast heating and cooling

F. X. Bai
, J. H. Yao^*
, Y. X. Wang
, J. Pan
, Y. Li

^*Corresponding author for this work

CAS - Institute of Metal Research

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

53 Scopus citations

Abstract

The crystallization behavior of Au₅₀Cu_25.5Ag_7.5Si₁₇ metallic glass during continuous heating/cooling and isothermal treatment is investigated by ultrafast calorimetry. The relationship between the transformation and the time/temperature scales of the alloy is established experimentally in a wide temperature range from glass transition temperature to the melting point. Temperature-dependent viscosity in the expanded supercooled liquid region is derived from the thermodynamic and kinetic analysis of the crystallization behavior of the metallic glass. The nucleation rate and growth velocity for crystallization of the supercooled liquid are analyzed by applying classical nucleation theory and diffusion-controlled growth theory.

Original language	English
Pages (from-to)	58-62
Number of pages	5
Journal	Scripta Materialia
Volume	132
DOIs	https://doi.org/10.1016/j.scriptamat.2017.02.001
State	Published - 15 Apr 2017
Externally published	Yes

Keywords

Crystallization
Differential scanning calorimetry (DSC)
Kinetics
Metallic glass
Thermodynamics

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10.1016/j.scriptamat.2017.02.001

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title = "Crystallization kinetics of an Au-based metallic glass upon ultrafast heating and cooling",

abstract = "The crystallization behavior of Au50Cu25.5Ag7.5Si17 metallic glass during continuous heating/cooling and isothermal treatment is investigated by ultrafast calorimetry. The relationship between the transformation and the time/temperature scales of the alloy is established experimentally in a wide temperature range from glass transition temperature to the melting point. Temperature-dependent viscosity in the expanded supercooled liquid region is derived from the thermodynamic and kinetic analysis of the crystallization behavior of the metallic glass. The nucleation rate and growth velocity for crystallization of the supercooled liquid are analyzed by applying classical nucleation theory and diffusion-controlled growth theory.",

keywords = "Crystallization, Differential scanning calorimetry (DSC), Kinetics, Metallic glass, Thermodynamics",

author = "Bai, \{F. X.\} and Yao, \{J. H.\} and Wang, \{Y. X.\} and J. Pan and Y. Li",

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doi = "10.1016/j.scriptamat.2017.02.001",

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T1 - Crystallization kinetics of an Au-based metallic glass upon ultrafast heating and cooling

AU - Bai, F. X.

AU - Yao, J. H.

AU - Wang, Y. X.

AU - Pan, J.

AU - Li, Y.

PY - 2017/4/15

Y1 - 2017/4/15

N2 - The crystallization behavior of Au50Cu25.5Ag7.5Si17 metallic glass during continuous heating/cooling and isothermal treatment is investigated by ultrafast calorimetry. The relationship between the transformation and the time/temperature scales of the alloy is established experimentally in a wide temperature range from glass transition temperature to the melting point. Temperature-dependent viscosity in the expanded supercooled liquid region is derived from the thermodynamic and kinetic analysis of the crystallization behavior of the metallic glass. The nucleation rate and growth velocity for crystallization of the supercooled liquid are analyzed by applying classical nucleation theory and diffusion-controlled growth theory.

AB - The crystallization behavior of Au50Cu25.5Ag7.5Si17 metallic glass during continuous heating/cooling and isothermal treatment is investigated by ultrafast calorimetry. The relationship between the transformation and the time/temperature scales of the alloy is established experimentally in a wide temperature range from glass transition temperature to the melting point. Temperature-dependent viscosity in the expanded supercooled liquid region is derived from the thermodynamic and kinetic analysis of the crystallization behavior of the metallic glass. The nucleation rate and growth velocity for crystallization of the supercooled liquid are analyzed by applying classical nucleation theory and diffusion-controlled growth theory.

KW - Crystallization

KW - Differential scanning calorimetry (DSC)

KW - Kinetics

KW - Metallic glass

KW - Thermodynamics

UR - https://www.scopus.com/pages/publications/85012255190

U2 - 10.1016/j.scriptamat.2017.02.001

DO - 10.1016/j.scriptamat.2017.02.001

M3 - 文章

AN - SCOPUS:85012255190

SN - 1359-6462

VL - 132

SP - 58

EP - 62

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Crystallization kinetics of an Au-based metallic glass upon ultrafast heating and cooling

Abstract

Keywords

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