| 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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Granberg, Fredric
University of Helsinki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Understanding the RBS/c spectra of irradiated tungsten : A computational study
- 2024Understanding the RBS/c spectra of irradiated tungsten
- 2024Unveiling the radiation-induced defect production and damage evolution in tungsten using multi-energy Rutherford backscattering spectroscopy in channeling configurationcitations
- 2021Temperature effect on irradiation damage in equiatomic multi-component alloyscitations
- 2021Origin of increased helium density inside bubbles in Ni(1-x)Fex alloyscitations
- 2020Segregation of Ni at early stages of radiation damage in NiCoFeCr solid solution alloyscitations
- 2020GeV ion irradiation of NiFe and NiCo: Insights from MD simulations and experimentscitations
- 2019Local segregation versus irradiation effects in high-entropy alloys : Steady-state conditions in a driven systemcitations
- 2019Cascade overlap with vacancy-type defects in Fecitations
- 2019Radiation stability of nanocrystalline single-phase multicomponent alloyscitations
- 2018Effects of precipitates and dislocation loops on the yield stress of irradiated ironcitations
- 2018GeV ion irradiation of NiFe and NiCo: Insights from MD simulations and experimentscitations
- 2017Atomic-level heterogeneity and defect dynamics in concentrated solid-solution alloyscitations
- 2017Local segregation versus irradiation effects in high-entropy alloyscitations
- 2015Molecular dynamics investigation of the interaction of dislocations with carbides in BCC Fecitations
Places of action
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article
Local segregation versus irradiation effects in high-entropy alloys
Abstract
We study order transitions and defect formation in a model high-entropy alloy (CuNiCoFe) under ion irradiation by means of molecular dynamics simulations. Using a hybrid Monte-Carlo/molecular dynamics scheme, a model alloy is generated which is thermodynamically stabilized by configurational entropy at elevated temperatures, but partly decomposes at lower temperatures by copper precipitation. Both the high-entropy and the multiphase sample are then subjected to simulated particle irradiation. The damage accumulation is analyzed and compared to an elemental Ni reference system. The results reveal that the high-entropy alloy—independent of the initial configuration—installs a certain fraction of short-range order even under particle irradiation. Moreover, the results provide evidence that defect accumulation is reduced in the high-entropy alloy. This is because the reduced mobility of point defects leads to a steady state of defect creation and annihilation. The lattice defects generated by irradiation are shown to act as sinks for Cu segregation.