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Reference: De Castro, Vanessa, Lozano-Perez, Sergio, Briceno, Martha et al., (2015). Effects of single- and simultaneous triple-ion-beam irradiation on an oxide dispersion-strengthened Fe12Cr steel. Journal of Materials Science, 50 (5), 2306-2317.Citable link to this page:

 

Effects of single- and simultaneous triple-ion-beam irradiation on an oxide dispersion-strengthened Fe12Cr steel

Abstract: Oxide dispersion-strengthened (ODS) steels are main candidates for structural applications in future fusion reactors. Understanding their irradiation-induced behaviouris a key in building optimised components with enhanced radiation resistance. In this work, the stability of an ODS Fe12Cr steel was investigated by transmission electron microscopy after single- (Fe4+) andsimultaneous triple-ion-beam irradiation (Fe8+, He+ and H+) at room temperature to doses of 4.4 and 10 dpa. The irradiations were accomplished at the JANNUS-Saclay facility. Results after single-ion-beam irradiation were also compared with those from a reference Fe12Cr steel produced following the same route. Analyses focused on determining the irradiation-induced loop size and density in the ODS and reference materials, investigating the grain boundary microchemistry and studying the evolution of the secondary phases present. These experiments show that the Y-rich nanoparticles present in the ODS steel are quite stable under these irradiation conditions although evolution of larger Cr-rich carbides could be taking place. Loop sizes are smaller for the ODS steel than for the reference material and appear to increase with dose. Cr segregates at some of the grain boundaries, though this segregation also occurs in the absence of irradiation.

Peer Review status:Peer reviewedPublication status:PublishedVersion:Accepted Manuscript Funder: Ministerio de Ciencia e Innovación   Funder: European Commission   Funder: Engineering and Physical Sciences Research Council   Funder: Royal Society   Notes:Copyright © Springer Science+Business Media New York 2014. This is the accepted manuscript version of the article. The final version is available online from Springer at: http://dx.doi.org/10.1007/s10853-014-8794-y

Bibliographic Details

Publisher: Springer US

Publisher Website: htt://www.springer.com/

Journal: Journal of Materials Sciencesee more from them

Publication Website: http://link.springer.com/journal/10853

Issue Date: 2015

pages:2306-2317Identifiers

Urn: uuid:225b7250-b467-4e82-8245-822235895740

Source identifier: 502992

Eissn: 1573-4803

Doi: https://doi.org/10.1007/s10853-014-8794-y

Issn: 0022-2461 Item Description

Type: Journal article;

Language: eng

Version: Accepted Manuscript Tiny URL: pubs:502992

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Autor: De Castro, Vanessa - - - Lozano-Perez, Sergio - institutionUniversity of Oxford facultyOxford, MPLS, Department of Materials - -

Fuente: https://ora.ox.ac.uk/objects/uuid:225b7250-b467-4e82-8245-822235895740



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