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Title: Elucidating the nature of crystallization kinetics in Zr 46 Cu 46 Al 8 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 Zr 46Cu 46Al 8 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.

Authors:
 [1]; ORCiD logo [2];  [1];  [3];  [3];  [4]; ORCiD logo [5]
  1. City Univ. of Hong Kong, Kowloon, Hong Kong, (China). Dept. of Physics
  2. City Univ. of Hong Kong, Kowloon, Hong Kong, (China). Dept. of Physics; Nanjing Univ. of Science and Technology, Nanjing, Jiangsu (China)
  3. Univ. of Science and Technology Beijing, Beijing (China)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  5. City Univ. of Hong Kong, Kowloon, Hong Kong, (China). Dept. of Physics; City Univ. of Hong Kong Shenzhen Research Inst., Shenzhen (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Research Grants Council (RGC) of Hong Kong; National Natural Science Foundation of China (NNSFC); National Natural Science Foundation of Jiangsu Province; USDOE Office of Science (SC)
OSTI Identifier:
1563915
Grant/Contract Number:  
AC02-06CH11357; 51571170; 2016YFA0401501
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 21; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Wu, Xuelian, Lan, Si, Wei, Xiaoya, Zhou, Jie, Lu, Zhaoping, Almer, Jonathan D., and Wang, Xun-Li. Elucidating the nature of crystallization kinetics in Zr 46 Cu 46 Al 8 metallic glass through simultaneous WAXS/SAXS measurements. United States: N. p., 2019. Web. doi:10.1063/1.5088984.
Wu, Xuelian, Lan, Si, Wei, Xiaoya, Zhou, Jie, Lu, Zhaoping, Almer, Jonathan D., & Wang, Xun-Li. Elucidating the nature of crystallization kinetics in Zr 46 Cu 46 Al 8 metallic glass through simultaneous WAXS/SAXS measurements. United States. doi:10.1063/1.5088984.
Wu, Xuelian, Lan, Si, Wei, Xiaoya, Zhou, Jie, Lu, Zhaoping, Almer, Jonathan D., and Wang, Xun-Li. Mon . "Elucidating the nature of crystallization kinetics in Zr 46 Cu 46 Al 8 metallic glass through simultaneous WAXS/SAXS measurements". United States. doi:10.1063/1.5088984.
@article{osti_1563915,
title = {Elucidating the nature of crystallization kinetics in Zr 46 Cu 46 Al 8 metallic glass through simultaneous WAXS/SAXS measurements},
author = {Wu, Xuelian and Lan, Si and Wei, Xiaoya and Zhou, Jie and Lu, Zhaoping and Almer, Jonathan D. and Wang, Xun-Li},
abstractNote = {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.},
doi = {10.1063/1.5088984},
journal = {Applied Physics Letters},
number = 21,
volume = 114,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
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Works referenced in this record:

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