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. 2023 Jun 29;9(7):e17811. doi: 10.1016/j.heliyon.2023.e17811

Fig. 10.

Fig. 10

X-ray diffraction analysis (XRD) of samples after 3 years of exposure time: (a) steel, where the main components were Lepidocrocite and Goethite, (b) galvanized steel, where the main component was simonkolleite.