Effects of surface modifications on deuterium retention in F82H and EUROFER exposed to low-energy deuterium plasmas
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- 作者：N. Ashikawaa ; b ; ashikawa@LHD.nifs.ac.jp" class="auth_mail" title="E-mail the corresponding author ; K. Sugiyamac ; A. Manhardc ; M. Baldenc ; W. Jacobc
- 关键词：Deuterium retention ; F82H ; EUROFER ; First-wall ; NRA ; RBS
- 刊名：Fusion Engineering and Design
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：112
- 期：Complete
- 页码：236-239
- 全文大小：656 K
文摘
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Deuterium retention in a Reduced Activation Ferritic/Martensitic (RAFM) steel alloy, F82H (8Cr-2W), and EUROFER (9Cr-1W) has been measured after exposure to deuterium plasmas.
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In RAFM steels, deuterium retention by low-energy deuterium plasma bombardments was on the order of 1017–1019 D/m2.
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Deuterium retention at lower temperatures is greater than at higher temperatures.
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Tungsten surface concentrations increase with fluence and ion energy due to selective sputtering of iron and chromium.