Deuterium retention and desorption behavior of reduced activated ferritic steel with surface damage due to high energy helium ion irradiation
Deuterium retention and desorption behavior of reduced activated ferritic steel with surface damage due to high energy helium ion irradiation
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DOI：
10.1016/j.fusengdes.2010.06.007
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发表时间：
2010-12
影响因子：
1.7
通讯作者：
Y. Yamauchi;K. Gotoh;Y. Nobuta;T. Hino;S. Suzuki;M. Akiba
中科院分区：
文献类型：
--
作者：
Y. Yamauchi;K. Gotoh;Y. Nobuta;T. Hino;S. Suzuki;M. Akiba
用5keV氦离子辐照降低活化铁素体-马氏体钢F82H，引起表面损伤。辐照后，辐照后的F82H持续暴露于1.7keV的氘离子中。研究了氦离子辐照引起的损伤对F82H的氘保留和解吸行为的影响。HD解吸在500K左右出现峰值，随着氦离子浓度的增加，HD解吸向高温区转移。观察到高通量区HDO解吸减少。这可能是由于溅射造成表面氧气的消耗。F82H的留氘量随着氦离子的影响逐渐增加，在7.2dpa时达到饱和。
Reduced activation ferritic-martensitic steel F82H was irradiated with 5keV helium ions to introduce the surface damage. After the irradiation, the irradiated F82H was continuously exposed to 1.7keV deuterium ions. The effects of the damages introduced by the helium ion irradiation on deuterium retention and desorption behavior of F82H were investigated. The HD desorption had a peak at around 500K, which was shifted to the high temperature region when the helium ion fluence increased. The decrease in HDO desorption at the high fluence region was observed. This might be owing to the oxygen depletion on the surface by the sputtering. The amount of retained deuterium of the F82H gradually increased with the helium ion fluence and saturated at 7.2dpa.