Fig. 5: XRD patterns of the corrosion product layers formed on low alloyed steel coupons in laboratory conditions (227 days of immersion).

a LA1 and (b) LA2. A = aragonite, C = calcite, G = goethite, GRC = carbonate green rust, GRS = sulfate green rust, L = lepidocrocite and M = magnetite. Thediffraction lines are denoted with the corresponding Miller index (hkl).