Analysis of Atmospheric Corrosion Products of Field Exposed Nickel

Analysis of corrosion products formed on rain sheltered nickel samples was performed with diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) and x-ray photoelectron spectroscopy (XPS), complemented by x-ray powder diffraction and elemental analysis. Assignments of DRIFT-spectra could be performed and the interpretations are consistent with the other methods used. They reveal that the main constituents in corrosion products are basic nickel sulfates of two different types and suggest a reaction scheme with initially formed nickel (II) hydroxide