Publication:
Helium and deuterium retention in Eurofer97 under sequential irradiation at low fluxes

Простая страница элемента
dc.contributor.authorOgorodnikova, O. V.
dc.contributor.authorHarutyunyan, Z.
dc.contributor.authorGasparyan, Y.
dc.contributor.authorEfimov, V.
dc.contributor.authorОгородникова, Ольга Вячеславовна
dc.contributor.authorАрутюнян, Зорий Робертович
dc.contributor.authorГаспарян, Юрий Микаэлович
dc.contributor.authorЕфимов, Виталий Сергеевич
dc.date.accessioned2024-12-25T14:39:07Z
dc.date.available2024-12-25T14:39:07Z
dc.date.issued2022
dc.description.abstract© 2022The helium (He) retention and the influence of He-induced defects on the deuterium (D) retention and migration in Eurofer97 were investigated by in-situ and ex-situ thermal desorption spectroscopy technique. Samples were pre-irradiated with 3 keV He ions in the fluence range of 1019–1022 He/m2, then irradiation with 2 keV D3+ ions (667 eV/D) with a fluence of 1021 D/m2 was performed. Experiments were carried out at the sample temperature of 300 K. It was shown that the D retention in Eurofer97 increases and decreases with pre-irradiation with He fluences below and above 1021 He/m2, respectively. However, in all cases of He pre-irradiation, the D retention is higher than that in Eurofer97 without He pre-irradiation. The effect of the reduction of the D retention at He fluences above 1021 He/m2 can be connected with either the formation of open porosity due to interconnected bubbles or the strain field induced by high pressurized He bubbles that preventing D penetration into the bulk of a metal. Both effects reduce the D diffusion towards the bulk of a metal and, therefore, lead to a decrease in the D retention. Our data of in-situ and ex-situ experiments revealed that HemVn complexes in the temperature range of 600–800 K are unstable and transformed in stable HemVn complexes in the temperature range of 900–1100 K after air exposure. Due to a formation of oxide layer during a contact with the atmosphere, ex-situ TDS of D leads to a shift of the D release temperature in the high-temperature range compared to in-situ TDS in both cases with and without He pre-irradiation. Finally, the presence of He in a metal lattice will have the dominant influence on the D retention in the future fusion devices together with neutron irradiation and high temperature gradient. In the case of He saturation, the similar D retention was measured in different bcc metals and their alloys.
dc.identifier.citationHelium and deuterium retention in Eurofer97 under sequential irradiation at low fluxes / Ogorodnikova, O.V. [et al.] // Journal of Nuclear Materials. - 2022. - 568. - 10.1016/j.jnucmat.2022.153871
dc.identifier.doi10.1016/j.jnucmat.2022.153871
dc.identifier.urihttps://www.doi.org/10.1016/j.jnucmat.2022.153871
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85132787699&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000822681100007
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/28012
dc.relation.ispartofJournal of Nuclear Materials
dc.titleHelium and deuterium retention in Eurofer97 under sequential irradiation at low fluxes
dc.typeArticle
dspace.entity.typePublication
oaire.citation.volume568
relation.isAuthorOfPublication4060fa10-4dcf-4c82-a27a-80a301c87f28
relation.isAuthorOfPublicationcb123627-1290-4baf-b9fa-36a121e2f719
relation.isAuthorOfPublication7c09c13b-5454-4e2d-960e-7785484ee06a
relation.isAuthorOfPublicationaab0d99a-8361-4918-ba3a-3b41bc7fe752
relation.isAuthorOfPublication.latestForDiscovery4060fa10-4dcf-4c82-a27a-80a301c87f28
relation.isOrgUnitOfPublicationdcdb137c-0528-46a5-841b-780227a67cce
relation.isOrgUnitOfPublication.latestForDiscoverydcdb137c-0528-46a5-841b-780227a67cce
Файлы
Коллекции
Публикации