Deuterium permeation of amorphous alumina coating on 316L prepared by MOCVD

► Deuterium permeation behavior of alumina coating by MOCVD is investigated. ► The as-prepared alumina is amorphous. ► The alumina coating is dense and well adherent to substrate. ► Deuterium permeation rate of alumina coating is 2-3 orders of magnitude lower than martensitic steels.