| 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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Byggmästar, Jesper
University of Helsinki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Understanding the RBS/c spectra of irradiated tungsten : A computational study
- 2024Understanding the RBS/c spectra of irradiated tungsten
- 2024Solubility of Hydrogen in a WMoTaNbV High-Entropy Alloycitations
- 2024Nanoindentation of tungsten : From interatomic potentials to dislocation plasticity mechanismscitations
- 2024Interatomic force fields for zirconium based on the embedded atom method and the tabulated Gaussian Approximation Potential
- 2023Nanoindentation of tungstencitations
- 2023Simple machine-learned interatomic potentials for complex alloyscitations
- 2023Self-ion irradiation of high purity ironcitations
- 2023Comprehensive structural changes in nanoscale-deformed silicon modelled with an integrated atomic potentialcitations
- 2022Simple machine-learned interatomic potentials for complex alloyscitations
- 2021Modeling refractory high-entropy alloys with efficient machine-learned interatomic potentialscitations
- 2021Modeling refractory high-entropy alloys with efficient machine-learned interatomic potentials : Defects and segregationcitations
- 2021Machine-learning interatomic potential for W-Mo alloyscitations
- 2020Insights into the primary radiation damage of silicon by a machine learning interatomic potentialcitations
- 2019Cascade overlap with vacancy-type defects in Fecitations
- 2018Defect structures and statistics in overlapping cascade damage in fusion-relevant bcc metalscitations
Places of action
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article
Self-ion irradiation of high purity iron
Abstract
Ion irradiation may enhance material hardness through crystal defect nucleation and reorganization. In this study, we examine the nanomechanical behavior of high-purity iron samples, comparing the response of pristine specimen to those that have been self-irradiated with 5 MeV ions at 300 degrees C. We utilize spherical nanoindentation to investigate the nanomechanical response, and we focus on the comprehensive modeling of the self-irradiation effects in high-purity iron through large-scale molecular simulations. Transmission electron microscopy is used in the irradiated regions, at various depths below the nanoindentation imprint, to analyze the nucleation of dislocation networks and the plastic deformation mechanisms at room temperature. Large scale novel molecular dynamics simulations are conducted to simulate overlapping collision cascades reaching an irradiation dose with defect density similar to experiments, followed by nanoindentation simulations that display qualitative agreement to experiments. We find that irradiated sample requires higher critical load for the transition from elastic to plastic deformation due to interaction of dislocation lines with the dislocation loops and point defects formed during the irradiation, leading to hardening.