38 citations · 64 across the 5 of their papers we have counts for
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Emerging hierarchical dislocation structures: Insights from scanning electron microscopy-electron backscatter diffraction in situ tensile testing and multifractal analysis
Mikhail Lebyodkin, Maxim Gussev, Jamieson Brechtl +1
Understanding the evolution of dislocation structures during plastic deformation is critical for predicting the mechanical performance of metallic materials. In this work, we appli…
Influence of surface pre-deformation on the Portevin-Le Chatelier effect and the related multiscale complexity of plastic flow in an Al-Mg alloy
Hafsa Jaber, Benoît Beausir, Denis Entemeyer +3
The influence of the surface pre-deformation on jerky flow caused by the Portevin-Le Chatelier (PLC) effect was investigated using flat tensile specimens of an Al-Mg alloy. Althoug…
Scaling and complexity of stress fluctuations associated with smooth and jerky flow in a FeCoNiTiAl high-entropy alloy
Mikhail Lebyodkin, Jamieson Brechtl, Tatiana Lebedkina +3
Recent observations of jerky flow in high-entropy alloys (HEA) revealed a high role of self-organization of dislocations in their plasticity. The present work reports first results…
Correlation versus randomization of jerky flow in an AlMgScZr alloy using acoustic emission
T. A. Lebedkina, D. A. Zhemchuzhnikova, M. A. Lebyodkin
Jerky flow in solids results from collective dynamics of dislocations which gives rise to serrated deformation curves and a complex evolution of the strain heterogeneity. A rich ex…
The Portevin-Le Chatelier Effect and Beyond
Mikhail A. Lebyodkin, Tatiana A. Lebedkina
The chapter presents the problem of the complexity of plastic flow in alloys, which is manifested by serrated deformation curves and transient plastic strain localizations. This ph…