低活化铁素体/马氏体钢CLF-1氢氘的渗透行为

低活化铁素体/马氏体钢(RA FM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...

Hydrogen Isotope Permeation of Hydrogen and Deuterium in RAFM CLF-1 Steel

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 H₂ and D₂ decreases due to oxidation and defect trapping on the sample surface.