Journal of Shanghai University (English Edition)

, Volume 4, Issue 3, pp 250–253 | Cite as

Hydrogen permeation behavior in Fe3Al-based alloy

  • Tan Xiaa-hua 
  • Wan Xiao-jing 
Material Science And Engineering
Received:
Revised:

Abstract

Ultra-high vacuum gaseous hydrogen permeation experiments on Fe3Al-based alloy were performed in the temperature range of 330∼450°C with an upstream hydrogen pressure between 3. 38×104 Pa and 7.28×104 Pa. The results show that the hydrogen diffusivity and permeability in Fe3Al-based alloy obey Arrhenius relationship in the experimental temperature range and the hydrogen permeation process is controlled by the lattice diffusion of hydrogen at relative high temperature. The activation energy of hydrogen diffusion in the Fe3Al-based alloy was found to be 75 kJ/mol.

Key words

Fe3Al-based alloy hydrogen diffusivity hydrogen permeability activation energy 
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Copyright information

© Shanghai University 2000

Authors and Affiliations

  • Tan Xiaa-hua 
    • 1
  • Wan Xiao-jing 
    • 1
  1. 1.School of Material Science and EngineeringShanghai UniversityShanghaiChina

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