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Film-Forming Amines for the Corrosion Protection of Carbon Steels in Nuclear Power Plant Secondary Circuit Conditions: An Impedance Study

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Figure

Table I. Chemical composition (wt%) of the P275 carbon steel. Element C Si Mn Cr Mo Ni Cu Fe
Figure 2. Electrochemical impedance diagrams for the carbon steel covered by the magnetite with ODA treatment (100 mg kg 1 , 80 °C; 30 min; pH 25 °C 10, Ω 500 rpm) and without ODA
Figure 3. SEM micrographs of the carbon steel samples after the treatments in the autoclave
Figure 5 shows the impedance diagrams of the carbon steel samples after the treatment in the autoclave at 220 °C, with ODA (2 mg kg −1 and 168 h of immersion (Figs
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