期刊
JOURNAL OF NUCLEAR MATERIALS
卷 465, 期 -, 页码 236-244出版社
ELSEVIER
DOI: 10.1016/j.jnucmat.2015.05.045
关键词
Irradiation; Helium; RAFM steel; Ion implantation; TEM
资金
- EFDA (European Fusion Development Agreement)
- French network EMIR
- Euratom research and training programme [633053]
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.
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