Abstract

SHAIM, A. et al. Performance of Glasses Containing Titan as Potential Corrosion Inhibitors for Mild Steel in a 3% NaCl Solution. Port. Electrochim. Acta [online]. 2023, vol.41, n.5, pp.347-361.  Epub Oct 31, 2023. ISSN 0872-1904.  https://doi.org/10.4152/pea.2023410503.

Inhibition of MS corrosion in a 3% NaCl solution, by glasses containing Ti-0, Ti-5 and Ti-7, in different C, was investigated using AFM, EIS, FTIR spectroscopy, PPD, SEM and XRD techniques. PPD and IES gave IE(%) of 92.8, 99 and 98.3%, and 91.9, 98 and 98.3%, for Ti-0, Ti-5 and Ti-7 glasses, respectively, at optimum C (0.4 g/L). In addition, EIS results indicated that IE(%)increased with higher C of Ti in the glasses, reaching its maximum at 7% TiO2. The three studied compounds acted as anodic inhibitors, though anodic reactions were more suppressed than the cathodic ones. SEM revealed that the inhibitors significantly stopped the attack by Cl- ions, through chemical adsorption onto the MS surface.

Keywords : Ti-0; Ti-5 and Ti-7 glasses; MS; 3% NaCl; AFM; EIS; FTIR; PPD; SEM; XRD.

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