Abstract
The McNabb-Foster model was used to simulate the permeation curves, based on the proposed method and Oriani's equilibrium theory, by varying the characteristics of hydrogen trapping sites and the apparent hydrogen solubility. The simulated permeation curves were analyzed using lag time and breakthrough time methods to obtain effective diffusivities, which were finally utilized to reproduce the permeation curves according to Fick's diffusion laws. The discrepancies between the simulated and reproduced permeation curves were valued and analyzed. The influence of hydrogen apparent solubility and hydrogen trapping site characteristics, such as trapping sites density and hydrogen-trapping sites binding energy, on the permeation curves were studied and discussed.
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