Tritium Permeation in RAFM Steel

被引：0
|
作者：
Lu G. [1 ]
Xiang X. [1 ]
Bao J. [1 ]
Fan D. [2 ]
Zhang G. [1 ]
Chen C. [2 ]
Tang T. [1 ]
机构：
[1] Institute of Materials, China Academy of Engineering Physics, Jiangyou, 621907, Sichuan
[2] Science and Technology on Surface Physics and Chemistry Laboratory, China Academy of Engineering Physics, Mianyang, 621908, Sichuan
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2019年 / 40卷 / 01期
关键词：
Isotope effect; Permeation; RAFM steel; Tritium;
D O I：
10.13832/j.jnpe.2019.01.0065
中图分类号：
学科分类号：
摘要：
The tritium permeability of CLAM steel, one of the low activated ferrite/martensite steels (RAFM steels) made in China, have been experimentally measured by means of the gas evolution permeation technique over the temperature range of 573-823 K. The resultant permeability ΦT is 2.57×10-8exp(-38639/RT), the deduced diffusivity DT is 1.17×10-7 exp(-22011/RT) and Sieverts' constant ST is 2.2×10-1exp(-38639/RT). Again, there is an obvious isotope effect on D-T mixture permeation in which the permeability of deuterium is larger than that of tritium. The permeation separation coefficient αDT is 1.42 for D-T, and αHT is 3.76 for H-T. © 2019, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.
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页码：65 / 68
页数：3
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