Elucidating the nature of crystallization kinetics in Zr46Cu46Al8 metallic glass through simultaneous WAXS/SAXS measurements

Xuelian Wu; Si Lan; Xiaoya Wei; Jie Zhou; Zhaoping Lu; Jonathan D. Almer; Xun-Li Wang

doi:10.1063/1.5088984

Elucidating the nature of crystallization kinetics in Zr₄₆Cu₄₆Al₈ metallic glass through simultaneous WAXS/SAXS measurements

Xuelian Wu
, Si Lan
, Xiaoya Wei
, Jie Zhou
, Zhaoping Lu
, Jonathan D. Almer
, Xun-Li Wang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

15 Citations (Scopus)

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Abstract

Simultaneous wide- and small-angle X-ray scattering (WAXS/SAXS) measurements were performed to investigate the low-temperature crystallization kinetics of Zr₄₆Cu₄₆Al₈ bulk metallic glass during isothermal annealing. Quantitative analysis of the WAXS intensity data indicated that the crystallization process was dominated by steady-state homogeneous nucleation and three-dimensional diffusion-controlled growth. This observation was corroborated by quantitative analysis of the SAXS data showing a saturation of the growth of nanoscale crystallites. Comparison of simultaneously measured WAXS and SAXS data showed evidence of composition fluctuation prior to crystallization, suggesting that the crystallization was facilitated by nanoscale phase separation which established regions of favorable compositions catalyzing crystallization. The temperature dependence of crystallization mechanisms and the resulting microstructures in metallic glass are discussed.

Original language	English
Article number	211903
Journal	Applied Physics Letters
Volume	114
Issue number	21
DOIs	https://doi.org/10.1063/1.5088984
Publication status	Published - 27 May 2019

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Xuelian Wu, Si Lan, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Jonathan D. Almer, and Xun-Li Wang, "Elucidating the nature of crystallization kinetics in Zr46Cu46Al8 metallic glass through simultaneous WAXS/SAXS measurements", Appl. Phys. Lett. 114, 211903 (2019) and may be found at https://doi.org/10.1063/1.5088984.

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title = "Elucidating the nature of crystallization kinetics in Zr46Cu46Al8 metallic glass through simultaneous WAXS/SAXS measurements",

abstract = "Simultaneous wide- and small-angle X-ray scattering (WAXS/SAXS) measurements were performed to investigate the low-temperature crystallization kinetics of Zr46Cu46Al8 bulk metallic glass during isothermal annealing. Quantitative analysis of the WAXS intensity data indicated that the crystallization process was dominated by steady-state homogeneous nucleation and three-dimensional diffusion-controlled growth. This observation was corroborated by quantitative analysis of the SAXS data showing a saturation of the growth of nanoscale crystallites. Comparison of simultaneously measured WAXS and SAXS data showed evidence of composition fluctuation prior to crystallization, suggesting that the crystallization was facilitated by nanoscale phase separation which established regions of favorable compositions catalyzing crystallization. The temperature dependence of crystallization mechanisms and the resulting microstructures in metallic glass are discussed.",

author = "Xuelian Wu and Si Lan and Xiaoya Wei and Jie Zhou and Zhaoping Lu and Almer, \{Jonathan D.\} and Xun-Li Wang",

year = "2019",

month = may,

day = "27",

doi = "10.1063/1.5088984",

language = "English",

volume = "114",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Elucidating the nature of crystallization kinetics in Zr46Cu46Al8 metallic glass through simultaneous WAXS/SAXS measurements

AU - Wu, Xuelian

AU - Lan, Si

AU - Wei, Xiaoya

AU - Zhou, Jie

AU - Lu, Zhaoping

AU - Almer, Jonathan D.

AU - Wang, Xun-Li

PY - 2019/5/27

Y1 - 2019/5/27

N2 - Simultaneous wide- and small-angle X-ray scattering (WAXS/SAXS) measurements were performed to investigate the low-temperature crystallization kinetics of Zr46Cu46Al8 bulk metallic glass during isothermal annealing. Quantitative analysis of the WAXS intensity data indicated that the crystallization process was dominated by steady-state homogeneous nucleation and three-dimensional diffusion-controlled growth. This observation was corroborated by quantitative analysis of the SAXS data showing a saturation of the growth of nanoscale crystallites. Comparison of simultaneously measured WAXS and SAXS data showed evidence of composition fluctuation prior to crystallization, suggesting that the crystallization was facilitated by nanoscale phase separation which established regions of favorable compositions catalyzing crystallization. The temperature dependence of crystallization mechanisms and the resulting microstructures in metallic glass are discussed.

AB - Simultaneous wide- and small-angle X-ray scattering (WAXS/SAXS) measurements were performed to investigate the low-temperature crystallization kinetics of Zr46Cu46Al8 bulk metallic glass during isothermal annealing. Quantitative analysis of the WAXS intensity data indicated that the crystallization process was dominated by steady-state homogeneous nucleation and three-dimensional diffusion-controlled growth. This observation was corroborated by quantitative analysis of the SAXS data showing a saturation of the growth of nanoscale crystallites. Comparison of simultaneously measured WAXS and SAXS data showed evidence of composition fluctuation prior to crystallization, suggesting that the crystallization was facilitated by nanoscale phase separation which established regions of favorable compositions catalyzing crystallization. The temperature dependence of crystallization mechanisms and the resulting microstructures in metallic glass are discussed.

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U2 - 10.1063/1.5088984

DO - 10.1063/1.5088984

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 114

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

M1 - 211903

ER -

Elucidating the nature of crystallization kinetics in Zr₄₆Cu₄₆Al₈ metallic glass through simultaneous WAXS/SAXS measurements

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GRF: Linking Crystallization Kinetics to Glass Forming Ability of Metallic Glasses

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Elucidating the nature of crystallization kinetics in Zr46Cu46Al8 metallic glass through simultaneous WAXS/SAXS measurements

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GRF: Linking Crystallization Kinetics to Glass Forming Ability of Metallic Glasses

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Elucidating the nature of crystallization kinetics in Zr₄₆Cu₄₆Al₈ metallic glass through simultaneous WAXS/SAXS measurements