Structure and crystallization kinetics of a Cu50Zr45Ti5 glassy alloy

Guoqiang Xie; Dmitri V. Louzguine-Luzgin; Qingsheng Zhang; Wei Zhang; Akihisa Inoue

doi:10.1016/j.jallcom.2008.07.191

Structure and crystallization kinetics of a Cu₅₀Zr₄₅Ti₅ glassy alloy

Guoqiang Xie^*
, Dmitri V. Louzguine-Luzgin
, Qingsheng Zhang
, Wei Zhang
, Akihisa Inoue

^*Corresponding author for this work

Tohoku University

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

24 Scopus citations

Abstract

The crystallization kinetics and structure changes in a melt-spun Cu₅₀Zr₄₅Ti₅ glassy alloy on heating were investigated by X-ray diffractometry, transmission electron microscopy, differential scanning calorimetry and differential isothermal calorimetry. The glassy phase in the Cu₅₀Zr₄₅Ti₅ alloy was crystallized forming Cu₁₀Zr₇ and CuZr₂ phases upon thermal annealing. The activation energy for crystallization obtained by the Arrhenius equation was 435 kJ/mol. The crystallization process took place by nucleation and growth mechanism, and an Avrami exponent of about 3.3 may indicate a three-dimensional interface-controlled growth of nuclei with a decreasing nucleation rate.

Original language	English
Pages (from-to)	24-27
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	483
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.07.191
State	Published - 26 Aug 2009
Externally published	Yes

Keywords

Avrami exponent
Crystallization kinetics
Differential isothermal calorimetry
Metallic glasses
Transmission electron microscopy

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10.1016/j.jallcom.2008.07.191

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title = "Structure and crystallization kinetics of a Cu50Zr45Ti5 glassy alloy",

abstract = "The crystallization kinetics and structure changes in a melt-spun Cu50Zr45Ti5 glassy alloy on heating were investigated by X-ray diffractometry, transmission electron microscopy, differential scanning calorimetry and differential isothermal calorimetry. The glassy phase in the Cu50Zr45Ti5 alloy was crystallized forming Cu10Zr7 and CuZr2 phases upon thermal annealing. The activation energy for crystallization obtained by the Arrhenius equation was 435 kJ/mol. The crystallization process took place by nucleation and growth mechanism, and an Avrami exponent of about 3.3 may indicate a three-dimensional interface-controlled growth of nuclei with a decreasing nucleation rate.",

keywords = "Avrami exponent, Crystallization kinetics, Differential isothermal calorimetry, Metallic glasses, Transmission electron microscopy",

author = "Guoqiang Xie and Louzguine-Luzgin, \{Dmitri V.\} and Qingsheng Zhang and Wei Zhang and Akihisa Inoue",

year = "2009",

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day = "26",

doi = "10.1016/j.jallcom.2008.07.191",

language = "英语",

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journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Structure and crystallization kinetics of a Cu50Zr45Ti5 glassy alloy

AU - Xie, Guoqiang

AU - Louzguine-Luzgin, Dmitri V.

AU - Zhang, Qingsheng

AU - Zhang, Wei

AU - Inoue, Akihisa

PY - 2009/8/26

Y1 - 2009/8/26

N2 - The crystallization kinetics and structure changes in a melt-spun Cu50Zr45Ti5 glassy alloy on heating were investigated by X-ray diffractometry, transmission electron microscopy, differential scanning calorimetry and differential isothermal calorimetry. The glassy phase in the Cu50Zr45Ti5 alloy was crystallized forming Cu10Zr7 and CuZr2 phases upon thermal annealing. The activation energy for crystallization obtained by the Arrhenius equation was 435 kJ/mol. The crystallization process took place by nucleation and growth mechanism, and an Avrami exponent of about 3.3 may indicate a three-dimensional interface-controlled growth of nuclei with a decreasing nucleation rate.

AB - The crystallization kinetics and structure changes in a melt-spun Cu50Zr45Ti5 glassy alloy on heating were investigated by X-ray diffractometry, transmission electron microscopy, differential scanning calorimetry and differential isothermal calorimetry. The glassy phase in the Cu50Zr45Ti5 alloy was crystallized forming Cu10Zr7 and CuZr2 phases upon thermal annealing. The activation energy for crystallization obtained by the Arrhenius equation was 435 kJ/mol. The crystallization process took place by nucleation and growth mechanism, and an Avrami exponent of about 3.3 may indicate a three-dimensional interface-controlled growth of nuclei with a decreasing nucleation rate.

KW - Avrami exponent

KW - Crystallization kinetics

KW - Differential isothermal calorimetry

KW - Metallic glasses

KW - Transmission electron microscopy

UR - https://www.scopus.com/pages/publications/69249208607

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DO - 10.1016/j.jallcom.2008.07.191

M3 - 文章

AN - SCOPUS:69249208607

SN - 0925-8388

VL - 483

SP - 24

EP - 27

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Structure and crystallization kinetics of a Cu₅₀Zr₄₅Ti₅ glassy alloy

Abstract

Keywords

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