The permeation of D through this martensitic steel was investigated both experimentally and theoretically at 573 to 873K. The diffusivities and solubilities which were obtained by using the diffusion-limited approach were found to be underestimated if surface contamination reduced the rates of dissociation and recombination. In order to reduce this effect, 2 series of tests involving differing surface conditions were used.

Surface Effects in Diffusion Measurements – Deuterium Permeation through Martensitic Steel. A.Pisarev, V.Shestakov, S.Kulsartov, A.Vaitonene: Physica Scripta T, 2001, 94, 121-7