| 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
Segregation of Ni at early stages of radiation damage in NiCoFeCr solid solution alloys
Abstract
| openaire: EC/H2020/633053/EU//EUROfusion ; Defect evolution under irradiation is investigated in a set of single-phase concentrated solid solution alloys (SP-CSAs) containing Ni with Co, Fe and/or Cr. We show that atomic segregation of Ni takes place already at very early stages of radiation damage in the 2–4 element SP-CSAs containing Fe or Cr, well below 1 dpa. We arrive at this conclusion by following the evolution of positron annihilation signals as a function of irradiation dose in single crystal samples, complemented by molecular dynamics simulations in the same model systems for high entropy alloys (HEAs). This manifestation of short-range order calls attention to composition fluctuations at the atomic level in irradiated HEAs. Ion irradiation may induce short-range order in certain alloys due to chemically biased elemental diffusion. The work highlights the necessity of updating the assumption of a totally random arrangement in the irradiated alloys, even though the alloys before irradiation have random arrangements of different chemical elements. ; Peer reviewed