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Updated: Jan 21, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Structural characteristics in deformation mechanism transformation in nanoscale metallic glasses
Qi Zhang1, Qi-Kai Li2, Shao-Fan Zhao1
1Qian Xuesen laboratory of Space Technology, NO. 104 Youyi Road, Haidian district, Beijing 100094, People's Republic of China.
Abstract:
Deformation of metallic glasses is closely related to their microstructures which depend on the composition, processing method, and the size of the materials. This subtle structure-property relation is fairly complex and remains to be explored. Here, we scrutinize the microstructural evolution in relation to the mechanical properties in metallic glass nanowires with the same composition and size but subtle microstructural differences by controlling the preparing process using molecular dynamics simulations. The results suggest that a structural threshold exists for the transformation of deformation mechanisms in metallic glasses: when the structural feature exceeds the threshold, the deformation changes from homogeneous flow to shear localized deformation.
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