Influence of He ions irradiation on the deuterium permeation and retention behavior in the CLF-1 steel

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• 作者：Yu-Ping Xu^a ; ^b ; Tao Lu^a ; Xiao-Chun Li^a ; Feng Liu^a ; Hao-Dong Liu^a ; ^b ; Jing Wang^a ; ^b ; Zhong-Qing An^a ; Fang Ding^a ; Suk-Ho Hong^c ; Hai-Shan Zhou^a ; ^{haishanzhou@ipp.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Guang-Nan Luo^a ; ^b ; ^d ; ^e
• 关键词：RAFM steel ; Hydrogen isotopes ; Permeation ; Retention ; He ions irradiation
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2016
• 出版时间：1 December 2016
• 年：2016
• 卷：388
• 期：Complete
• 页码：5-8
• 全文大小：472 K

文摘

To evaluate the influence of He ions irradiation on the deuterium permeation and retention behavior in RAFM steels, samples made of the CLF-1 steel was irradiated with 3.5 MeV He ions. Gas driven permeation experiments were performed, and the permeability of virgin sample and pre-irradiated sample were obtained and compared. In order to characterize the effect of He ions irradiation on the deuterium retention behavior, deuterium gas exposure was carried out at 623 K, followed by thermal desorption spectra experiments. The total deuterium retention of the CLF-1 steel increased owing to He ions implantation, which could be attributed to the increase in trapping site for deuterium by the He pre-irradiation.