A study was made of the effect of dislocations and traps upon H diffusion, in high-purity zone-melted Fe, by using the time-lag permeation technique (tables 32 and 33). It was found that dislocations exerted a transient trapping effect upon the mobile H atoms.

R.Bouraoui, M.Cornet, S.Talbot-Besnard: Comptes Rendus, 1973, 277[5], 231-4