In situ TEM observation of phase transformation in bulk metallic glass composites

Huaping Sheng, Long Zhang, Haifeng Zhang, Jianbo Wang, Jürgen Eckert, Christoph Gammer

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2 Citations (Scopus)


Transformation-induced plasticity is a fundamental solution for improving the ductility of bulk metallic glass composites (BMGCs). However, the underlying mechanism remains controversial. Here, by using in situ transmission electron microscopy, we present direct observation of the transformation dynamics from β/ω phase to α’ phase of the crystalline dendrites in a TiZrCuBe BMGC under uniaxial tensile deformation. The transformation redistributes the stress in the adjacent matrix, making interfacial regions potential preferential sites for shear band nucleation. The high density of nucleation sites is believed to promote the formation of shear band networks and enhance the ductility of BMGCs.
Original languageEnglish
Pages (from-to)190-195
Number of pages6
JournalMaterials Research Letters
Issue number4
Publication statusE-pub ahead of print - 17 Jan 2021

Bibliographical note

Publisher Copyright:
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.


  • Bulk metallic glass composites
  • phase transformation
  • shear band nucleation
  • stress redistribution
  • transmission electron microscopy

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