Atom probe characterization of nano-scaled features in irradiated ODS Eurofer steel

Рогожкин, С. В.; Aleev, A. A.; Залужный, А. Г.; Никитин, А. А.; Iskandarov, N. A.; Vladimirov, P.; Lindau, R.; Möslang, A.

doi:10.1016/j.jnucmat.2010.09.021

Cited by 51 publications

(19 citation statements)

References 8 publications

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“…A possible clue as to the details of the mechanism leading to the production of HFe 5 O 8 can be found in earlier investigations of the stability of oxide particles under irradiation conditions from neutrons, electrons, and heavy-ions [22][23][24]. What is revealed in these articles is that the oxide particles can either disappear (smaller particles) or can be reduced in size (larger particles.…”

Section: Experimental Descriptions Of He and H Synergy Effectsmentioning

confidence: 99%

A review of helium–hydrogen synergistic effects in radiation damage observed in fusion energy steels and an interaction model to guide future understanding

Marian

Hoang

Fluss

et al. 2015

Journal of Nuclear Materials

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Section: Experimental Descriptions Of He and H Synergy Effectsmentioning

confidence: 99%

A review of helium–hydrogen synergistic effects in radiation damage observed in fusion energy steels and an interaction model to guide future understanding

Marian

Hoang

Fluss

et al. 2015

Journal of Nuclear Materials

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“…Extensive studies of the properties of these materials have been carried out [6][7][8][9][10][11]. The most complicated problem is to investigate their radiation resistance, especially at high displacement damage doses.…”

Section: Introductionmentioning

confidence: 99%

Evolution of microstructure in advanced ferritic-martensitic steels under irradiation: the origin of low temperature radiation embrittlement

et al. 2016

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Advanced reduced activation ferritic/martensitic steels and oxide dispersion-strengthened steels exhibit significant radiation embrittlement under low temperature neutron irradiation. In this study we focused on atom probe tomography (APT) of Eurofer97 and ODS Eurofer steels irradiated with neutrons and heavy ions at low temperatures. Previous TEM studies revealed dislocation loops in the neutron-irradiated f\m steels. At the same time, our APT showed early stages of solid solution decomposition. High density (10 24 m -3 ) of ~3-5 nm clusters enriched in chromium, manganese, and silicon atoms were found in Eurofer 97 irradiated in BOR-60 reactor to 32 dpa at 332°C. In this steel irradiated with Fe ions up to the dose of 24 dpa, pair correlation functions calculated using APT data showed the presence of Cr-enriched pre-phases.APT study of ODS Eurofer found a significant change in the nanocluster composition after neutron irradiation to 32 dpa at 330 °C and an increase in cluster number density. APT of ODS steels irradiated with Fe ions at low temperatures revealed similar changes in nanoclusters.These results suggest that irradiation-induced nucleation and evolution of very small precipitates may be the origin of low temperature radiation embrittlement of f\m steels.

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“…In the initial state, it is characterized by a high density (~10 24 m -3 ) of nanosized clusters (2-4 nm) enriched in Y, V, O, and N [14]. The fine struc ture of this material after irradiation in a BOR 60 reactor to a dose of 32 dpa was also tested by the meth ods of tomographic atom probe microscopy [15]. Car rying out the imitation irradiation of this material is reasonable with a view of comparison of the results of ion and reactor irradiations.…”

Section: Effect Of Irradiation By Heavy Ions On the Nanostructure Of mentioning

confidence: 99%

Effect of irradiation by heavy ions on the nanostructure of perspective materials for nuclear power plants

Рогожкин

Aleev

Залужный

et al. 2012

Phys. Metals Metallogr.

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An imitation experimental technique on the irradiation with heavy ions of structural materials of nuclear power plants using tomographic atom probe analysis has been elaborated. The scheme of irradiation of specimens for atom probe analysis has been realized on a MEVVA ion source of an TIPr accelerator (ITEP) with ion energy 75 keV per charge. Test experiments with irradiation and analysis of samples of the EK 181 steel by aluminum ions to a fluence of ~2 × 10 15 ion/cm 2 have been performed. Experiments on the Fe ion irradiation of the samples of ODS EUROFER perspective steel for fission and fusion reactors to different damaging doses have been carried out. The analysis of distribution of different chemical elements in the vol umes tested has revealed that under ion irradiation a change in the composition of nanosized clusters, which are present in the initial material takes place. Comparison of the data obtained with the results of reactor irra diation of the ODS EUROFER steel has been carried out. These data testify a correspondence between nanoscale changes in the steels oxide dispersion strengthened in imitation experiments and under the condi tions of reactor irradiation.

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Atom probe characterization of nano-scaled features in irradiated ODS Eurofer steel

Cited by 51 publications

References 8 publications

A review of helium–hydrogen synergistic effects in radiation damage observed in fusion energy steels and an interaction model to guide future understanding

A review of helium–hydrogen synergistic effects in radiation damage observed in fusion energy steels and an interaction model to guide future understanding

Evolution of microstructure in advanced ferritic-martensitic steels under irradiation: the origin of low temperature radiation embrittlement

Effect of irradiation by heavy ions on the nanostructure of perspective materials for nuclear power plants

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