Abstract
Abstract The role of dislocations on hydrogen permeation time of Al-killed, unalloyed low-carbon steels was investigated using a special high-resolution double crystal diffractometer operated at a rotating copper anode with fine focus. Information about dislocation character and Burgers vector populations are given by strain anisotropy. Generally, the hydrogen permeability increases or decreases with dislocation densities but hydrogen accumulation proved to be less favourable near a screw dislocation than an edge dislocation.
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