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Characterization of Rust Layer Formed on Fe, Fe Ni and Fe Cr Alloys Exposed to Cl Rich Environment by Cl and Fe K Edge XANES Measurements

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Table 1List of specimens for exposure test taken from ref. 20. Corrosion weight loss was measured after the exposure period (note thatthe specimen size is 150 � 50 � 5 mm3)
Fig. 1Cl K-edge XANES spectra of some rust samples and referencecompounds. The photon energies of absorption maxima A, A0, B and C aregiven in Table 2
Fig. 2Fe K-edge XANES spectra measured for the rust samples (solidlines). Dotted lines also show fitting patterns using the measured spectra ofreference compounds (goethite, akagane´ite, lepidocrocite and magnetite)shown in Fig
Table 3Calculated mole ratio of iron oxides in rust layer with the parameters used. Pattern-fitting calculation for Fe K-XANES directlygives ‘‘intensity fraction’’ �i

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