Gas driven deuterium permeation through F82H martensitic steel

The permeation of deuterium through martensitic steel F82H is investigated in the ranges of 573–873 K and 102–103 Pa in two series of experiments with different surface conditions. The experiment is compared with diffusion calculations. The effective values of the diffusion coefficients and solubilities have been obtained. Both the ‘permeation’ and ‘accumulation’ curves are analyzed. The later can mislead in judgment about the quality of the experiment and validity of the diffusion approach.