| People | Locations | Statistics |
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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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Huang, Xiaoxu
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Aging 17-4 PH martensitic stainless steel prior to hardening:effects on martensitic transformation, microstructure and propertiescitations
- 2023Aging 17-4 PH martensitic stainless steel prior to hardeningcitations
- 2019Deformation microstructures and strength of face-centered cubic high/medium entropy alloyscitations
- 2017Non-spherical voids and lattice reorientation patterning in a shock-loaded Al single crystalcitations
- 2017A gradient surface produced by combined electroplating and incremental frictional sliding
- 2014Microstructural evolution and strength of copper during cold rolling to large strain
- 2012Strain distribution during tensile deformation of nanostructured aluminum samplescitations
- 2012Effect of hardness of martensite and ferrite on void formation in dual phase steelcitations
- 2012Length scale effects on deformation microstructure formation in the near-micrometre grain size regime
- 2012Ultrafine Structure and High Strength in Cold-Rolled Martensitecitations
- 2012Stored energy and annealing behavior of heavily deformed aluminiumcitations
- 2011Three-Dimensional Orientation Mapping in the Transmission Electron Microscopecitations
- 2010Strain rate dependence of the flow stress in nanostructured aluminium sheets produced by accumulative roll bonding
- 2010Strengthening mechanisms and optimization of structure and properties in a nanostructured IF steelcitations
- 2008Tailoring structures through two-step annealing process in nanostructured aluminum produced by accumulative roll-bondingcitations
- 2008Property optimization of nanostructured ARB-processed Al by post-process deformationcitations
- 2007Investigation of the deformation structure in an aluminium magnesium alloy by high angular resolution three-dimensional X-ray diffractioncitations
Places of action
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article
Deformation microstructures and strength of face-centered cubic high/medium entropy alloys
Abstract
In this study we report the deformation microstructures and strength of medium entropy alloys (MEAs) and high entropy alloys (HEAs), which are defined as alloys composed of four or less, and five or more principal elements, respectively, with (near-) equi-atomic concentrations. The friction stress (fundamental resistance to dislocation motion in the crystal lattice) and Hall-Petch relationship of various MEAs (CoCrFeNi, CoCrNi, etc.), taken as subsystems of the equi-atomic CoCrFeMnNi HEA, were precisely measured at room temperature. Experimental values of the friction stresses were found to fit with a theoretical model proposed by Toda-Caraballo et al. very well, which indicates that the strength of the alloys is closely related to a heterogeneously distorted crystal lattice. At the same time, values of the average lattice distortion in the alloys were found to be comparable to those in some dilute alloys, contradicting the belief that “severe” lattice distortion is a reason for the higher strength than in dilute systems. Finally, a strengthening mechanism due to element-element interactions was proposed as an additional mechanism in FCC HEAs and MEAs.