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Deuterium Retention Behavior in W-Fe-Ni Alloy
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Affiliation:

1.Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China;2.Institute of Materials, China Academy of Engineering Physics, Mianyang 621908, China;3.Institut Franco-Chinois de L'Energie Nucléaire, Sun Yat-Sen University, Zhuhai 519082, China

Fund Project:

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

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    Abstract:

    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.

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[Ji Fuhao, Jiang Yingwu, Chang Yu, Yan Jun, Jiang Chunli, Wu Jiliang, Li Qiang, Zhang Xiangdong, Ye Xiaoqiu. Deuterium Retention Behavior in W-Fe-Ni Alloy[J]. Rare Metal Materials and Engineering,2022,51(11):4067~4075.]
DOI:10.12442/j. issn.1002-185X.20210984

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History
  • Received:November 11,2021
  • Revised:December 28,2021
  • Adopted:February 09,2022
  • Online: December 07,2022
  • Published: November 30,2022