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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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Holopainen, Sami
Université Bourgogne Franche-Comté
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Mechanical Degradation and Fatigue Life of Amorphous Polymerscitations
- 2023Short-to long-term deformation behavior of glassy polymers under cyclic uniaxial, torsional, and multiaxial loads
- 2023Super ductile metallic glasses for energy-saving solid-state processingcitations
- 2023Super ductile metallic glasses for energy-saving solid-state processingcitations
- 2023Mechanical degradation and fatigue life of amorphous polymers
- 2023Modeling of extremely ductile behavior of Zr-based bulk metallic glasses under compressive strain paths for solid-state processingcitations
- 2021Short- to long-term deformation behavior, failure, and service life of amorphous polymers under cyclic torsional and multiaxial loadingscitations
- 2014Influence of damage on inhomogeneous deformation behavior of amorphous glassy polymers. Modeling and algorithmic implementation in a finite element settingcitations
- 2013Modeling of Mechanical Behavior of Amorphous Glassy Polymers
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article
Modeling of extremely ductile behavior of Zr-based bulk metallic glasses under compressive strain paths for solid-state processing
Abstract
International audience ; In addition to extremely high strength, manufacturing temperaturesof bulk metallic glasses (BMGs) relative to steels are low makingthem to desired energy saving engineering materials. However, BMGsare significantly brittle at low temperatures. To further increasesuitability of BMGs for widespread use, it is essential tounderstand their plastic deformability (ductility) for high-techsolid-state processes at lowered temperatures. In this work,extremely large deformation behavior (near 80% in compression) ofindustrially important Zr-based BMGs was investigated. Theexperimentally measured results aided in the development of anappropriate constitutive model and revealed the micromechanismsaffecting the characteristic macroscopic deformation behaviorincluding softening and hardening. The measured and model resultsshowed that the ductility can be significantly improved throughchemical composition changes, such as a reduction in the Cu contentand an increase in the Zr, Ti, or Be contents. In contrast topreviously announced conclusions on the high glass-forming ability(GFA) being the precursors to ductility, formation of sufficientlylow degree of crystallization during cooling improved ductility ofas-cast specimens under loadings. These observed properties areimportant in assessing the ability of BMGs for solid-stateprocessing.