Abstract
A preliminary study was made of the effect of various surface coatings on the absorption of hydrogen in steel. It was found that many metallic coating s such as gold, chromium, aluminum and other coatings such as oxides, chlorides, plastics etc. are impermeable to hydrogen or at least reduce considerably the absorption of hydrogen in steel. This reduction in absorption is effected even when the coatings are placed on the exit side of the hydrogen. The amount of hydrogen permeating through the coated specimens, and the deterioration in mechanical properties, taken as an indication of hydrogen embrittlement, were measured.
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