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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Bulk Metallic Glasses XIX
Presentation Title Strain-dependent shear-band structure in a metallic glass
Author(s) Robert Maass
On-Site Speaker (Planned) Robert Maass
Abstract Scope It is well known that strain localization into shear bands in metallic glasses induces local structural changes at the nanoscale. However, often the characterization of this structural damage is done at random locations where the relation between a local observable and the admitted shear strain is unclear. Here we address the question of strain-dependent shear damage in a Zr-based bulk metallic glass (Scripta Materialia 190 (2021) 75). Analyzing the shear-band structure of shear- band segments that experienced shear strains covering four orders of magnitude with high-angle annular dark field transmission electron microscopy (HAADF-STEM) reveals strongly scattered data with an overall trend of increasing local volume dilatation with increasing shear strain. Locally, however, a variety of trends is observed, which underlines the strong heterogeneity of structural damage in shear bands in metallic glasses.
Proceedings Inclusion? Planned:
Keywords Mechanical Properties, Characterization,


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