Microstructural characterization of Eurofer-97 and Eurofer-ODS steels before and after multi-beam ion irradiations at JANNUS Saclay facility

JOURNAL OF NUCLEAR MATERIALS

卷:465

Article

Brimbal, Daniel¹  Beck, Lucile¹  Troeber, Oliver²  Gaganidze, Ermile²  Trocellier, Patrick¹  Aktaa, Jarir²  Lindau, Rainer² 

[1] CEA, DEN, Serv Rech Met Phys, Lab JANNUS, F-91191 Gif Sur Yvette, France

[2] Karlsruhe Inst Technol, Inst Appl Mat, D-76021 Karlsruhe, Germany

关键词: Irradiation;    Helium;    RAFM steel;    Ion implantation;    TEM;   

DOI  :  10.1016/j.jnucmat.2015.05.045

来源: Elsevier

【 摘 要 】

RAFM steels such as Eurofer-97 and Eurofer-ODS are potential structural materials for future fusion reactors. In order to study their resistance to the high energy neutrons they will be subjected to in this context, we have irradiated these materials in single-, dual- and triple-beam mode to 26 dpa at 400 degrees C. In single-beam mode (Fe ions only), both materials resist swelling but dislocation loops form. For dual- (Fe and He ions) and triple-beam (Fe, He and H) modes, the same dislocation loop microstructure is observed as for the single-beam mode, but small cavities form, aided by the presence of gases. Despite the formation of cavities, swelling is very low for the present conditions. The influence of ODS particles on swelling is briefly discussed. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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