W-Fe-Ni合金中的氘滞留行为  

Deuterium Retention Behavior in W-Fe-Ni Alloy

作　　者：纪富豪 蒋应伍 常宇[2] 严俊 蒋春丽[1] 吴吉良 李强[1] 张向东[2] 叶小球[1] Ji Fuhao;Jiang Yingwu;Chang Yu;Yan Jun;Jiang Chunli;Wu Jiliang;Li Qiang;Zhang Xiangdong;Ye Xiaoqiu(Science and Technology on Surface Physics and Chemistry Laboratory,Mianyang 621907,China;Institute of Materials,China Academy of Engineering Physics,Mianyang 621908,China;Institut Franco-Chinois de L'Energie Nucléaire,Sun Yat-Sen University,Zhuhai 519082,China)

机构地区：[1]表面物理与化学重点实验室,四川绵阳621907 [2]中国工程物理研究院材料研究所,四川绵阳621908 [3]中山大学中法核工程与技术学院,广东珠海519082

出　　处：《稀有金属材料与工程》2022年第11期4067-4075,共9页Rare Metal Materials and Engineering

基　　金：Science and Technology on Surface Physics and Chemistry Laboratory Fund(6142A02200206);National Magnetic Confinement Fusion Energy Research Project(2015GB109002)。

摘　　要：采用气相驱动渗透系统和热脱附试验平台研究了W-Fe-Ni合金中氘的输运行为,获得了氘在合金中的渗透率、扩散系数、溶解度、扩散激活能等参数,进行了合金热充氘及氘热脱附实验,结合微观结构表征及数值模拟,研究了氘在W-Fe-Ni合金中的滞留行为,并建立了氢同位素扩散模型以估算不同形状尺寸的W-Fe-Ni合金中氘滞留量。通过与热脱附实验结果对比,发现使用多物理场数值模拟可以准确地估算W-Fe-Ni合金中氢同位素滞留量。Deuterium retention behavior in W-Fe-Ni alloy was investigated by the gas-phase driven permeation system and thermal desorption tests.The deuterium permeability,diffusion coefficient,solubility,and diffusion activation energy of deuterium in the W-Fe-Ni alloys were investigated.The thermal deuterium charging and thermal deuterium desorption experiments were conducted.Combined with the microstructure characteristics and numerical simulation,the deuterium retention behavior in W-Fe-Ni alloys was studied and the diffusion model of hydrogen isotope in W-Fe-Ni alloy was established to predict the deuterium retention in W-Fe-Ni alloys with different shapes.Compared with the results of thermal desorption tests,the amount of hydrogen isotope retention in W-Fe-Ni alloy can be accurately estimated by the multi-physics field numerical simulation.

关 键 词：W-Fe-Ni合金 氢同位素滞留 渗透 热脱附 数值模拟 

分 类 号：TG146.411[一般工业技术—材料科学与工程]