In-situ transmission electron microscopy analysis of the degree of heterogeneities in a metallic glass

N. Z. Zhang, Kang Sun, Daniel Şopu, Florian Spieckermann, Xindi Ma, Chuan Geng, Xilei Bian, Yandong Jia, Qing Wang, Gang Wang, Jürgen Eckert

Research output: Contribution to journalArticleResearchpeer-review


The most common strategy to enhance the plasticity of metallic glasses (MGs) is to synthesize MG composites with crystalline phases. Here, the evolution of crystallization and the correlation between void-like defects and crystallization for the as-spun and cryogenically-treated (CT) MGs are investigated under a rigorous annealing process conducted in-situ. The as-spun specimen maintains its amorphous structure with a relatively large size of nanoscale defects. However, crystallization is observed for the CT MG with a high concentration of nanoscale defects that decreases during the crystallization process. The crystallization develops readily in the CT MG due to the greater size of the ordered clusters, the higher concentration of seeding sites, and its greater nucleation rate. Our findings demonstrated cryogenic treatment could tune atomic rearrangements, which has guiding significance on designing MG composite with controlled length scales and distribution of crystalline inclusions.
Original languageEnglish
Article number107807
Number of pages10
Issue numberMarch
Early online date20 Dec 2022
Publication statusPublished - Mar 2023

Bibliographical note

Publisher Copyright: © 2022 Elsevier Ltd


  • Crystallization
  • Defect
  • Fourier transform filtering analysis
  • In-situ TEM
  • Metallic glass

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