Hydrogen-Induced Superabundant Vacancies in Metals: Implication for Electrodeposition
The equilibrium concentration of vacancies in metals is invariably enhanced in the presence of interstitial hydrogen atoms – a phenomenon called superabundant vacancy (SAV) formation. It has been recognized that the SAV formation occurs in electrodeposition, as M-, H-atoms and M-atom vacancies are deposited by atom-by-atom process. Effects of SAV formation are described for electrodeposited Ni, Ni-Fe alloys, Fe-C alloys and Cu. Possible implication of SAV formation for corrosion in Al and steels is also briefly described.
Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
Y. Fukai "Hydrogen-Induced Superabundant Vacancies in Metals: Implication for Electrodeposition", Defect and Diffusion Forum, Vols. 312-315, pp. 1106-1115, 2011