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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Şopu, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Maximizing the degree of rejuvenation in metallic glassescitations
- 2021From elastic excitations to macroscopic plasticity in metallic glassescitations
- 2020Chemical bonding effects on the brittle-to-ductile transition in metallic glassescitations
- 2020Atomic-scale origin of shear band multiplication in heterogeneous metallic glassescitations
- 2019Modulating heterogeneity and plasticity in bulk metallic glasses: Role of interfaces on shear bandingcitations
- 2019Tuning the glass forming ability and mechanical properties of Ti-based bulk metallic glasses by Ga additionscitations
- 2019Structure-Property relationships in shape memory metallic glass compositescitations
- 2019High-resolution transmission electron microscopy investigation of diffusion in metallic glass multilayer filmscitations
- 2018Metallic glass nanolaminates with shape memory alloyscitations
- 2018Ductile bulk metallic glass by controlling structural heterogeneities
- 2018Ductile bulk metallic glass by controlling structural heterogeneitiescitations
- 2017β-type Ti-based bulk metallic glass composites with tailored structural metastabilitycitations
- 2016Brittle-to-ductile transition in metallic glass nanowirescitations
- 2015Deformation behavior of metallic glass composites reinforced with shape memory nanowires studied via molecular dynamics simulationscitations
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article
From elastic excitations to macroscopic plasticity in metallic glasses
Abstract
Shear transformation zone (STZ) remains the fundamental unit to explain plastic flow in metallic glasses (MGs). Although STZs have been known and characterized for decades now the morphological and dynamical characteristics of STZs are not fully understood yet. Here, simulating athermal quasistatic shearing processes, the atomic-level mechanisms underlying elastic and plastic deformation in MGs are disclosed. Given the highly heterogeneous nature of glassy materials and the related rugged energy landscape the activation of STZs is observed from an early level of elastic deformation until the final shearing stage. The STZs identified within the elastic and plastic ranges have similar fingerprints but different magnitude and dynamics. Long-range overlapping STZ fields constrain atomic rearrangements and limit quantifying structure-dynamics correlations that explains the difficulty in establishing an ideal structure-property relationships for MGs.