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Updated: Dec 5, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Origin of reversible and irreversible atomic-scale rearrangements in a model two-dimensional network glass
Firaz Ebrahem1, Franz Bamer1, Bernd Markert1
1Institute of General Mechanics, RWTH Aachen University, 52062 Aachen, Germany.
Abstract:
In this contribution, we investigate the fundamental mechanism of plasticity in a model two-dimensional network glass. The glass is generated by using a Monte Carlo bond-switching algorithm and subjected to athermal simple shear deformation, followed by subsequent unloading at selected deformation states. This enables us to investigate the topological origin of reversible and irreversible atomic-scale rearrangements. It is shown that some events that are triggered during loading recover during unloading, while some do not. Thus, two kinds of elementary plastic events are observed, which can be linked to the network topology of the model glass.
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