摘要
低活化铁素体/马氏体钢(RAFM钢)作为聚变堆结构材料中最有前景的候选材料,其氢同位素渗透行为备受关注。采用氢同位素气相驱动渗透的方法,对中国低活化铁素体/马氏体钢CLF-1的氢同位素渗透行为进行了研究,研究了温度、气体压强、样品表面状态等因素对其渗透行为的影响。结果表明:氢、氘在RAFM CLF-1钢中渗透扩散过程为体扩散控制,渗透率与温度的关系式均遵循Arrhenius关系;在实验测试过程中,由于样品表面发生氧化现象和缺陷捕获造成H_(2)和D_(2)渗透实验中渗透通量出现下降的现象。
CLF-1 steel is one of the most promising structure candidate materials in low activated ferrite/martensite steels(RAFM steels),and its hydrogen isotope permeation behavior is attracted much attention.In this work,hydrogen isotope permeation experiments were carried out on CLF-1 steel by gas driven hydrogen isotope permeation method.The effects of temperature,gas pressure and surface condition on the permeation behavior were investigated.The experimental results show that the diffusion process of hydrogen and deuterium in RAFM CLF-1 steel is controlled by bulk diffusion,and the relationship between permeability and temperature follows Arrhenius relationship;during the experimental test,the permeation flux of H_(2)and D_(2)decreases due to oxidation and defect trapping on the sample surface.
作者
洪志浩
冯勇进
王龙
李茹烟
王晓宇
张龙
HONG Zhi-hao;FENG Yong-jin;WANG Long;LI Ru-yan;WANG Xiao-yu;ZHANG Long(Western Institute of Physics,China National Nuclear Corporation,Chengdu 610225,China)
出处
《核化学与放射化学》
CAS
CSCD
北大核心
2021年第3期238-243,共6页
Journal of Nuclear and Radiochemistry
基金
国家重点研发计划项目(2017YFE0300602)
国家磁约束核聚变能发展研究专项(2018YFE0313200)
国家自然科学基金项目(12005051)。
关键词
CLF-1钢
气相驱动氢同位素渗透
渗透率
表面状态
CLF-1 steel
gas driven hydrogen isotope permeation method
permeability
surface state
