Fig. 10: μ-Raman spectroscopy analysis of the inner thin film of corrosion products in contact with the steel surface – typical spectra obtained for LA2.

a, b, c After exposure in laboratory conditions and (d, e) after exposure in seaport conditions. GR = green rust and M* = (Cr^III, Fe^II,III) oxide. Each Ramanpeak is indexed with its position in cm⁻¹.