Corrosion Resistance of Nanocrystalline Ni and Ni Alloy Coatings

摘要

The corrosion behavior of nanocrystalline Ni and various Ni alloys produced by electrodeposition has beenstudied using potentiodynamic polarization. Particular emphasis was placed on the effects of grain size andalloy composition on the passive behaviour in solutions of varying pH. Scanning electron microscopy studieshave demonstrated that nanocrystalline materials show strong immunity to localized attack which reduces therisk of premature failure of these deposits.