Abstract
The synergistic effect of the combined admixture of benzonitrile and benzothiazole (BBZ) on the corrosion inhibition of 316 austenitic stainless steel in 6M HCl solution was evaluated through potentiodynamic polarization, coupon measurement, optical microscopy and IR spectroscopy analysis. Results obtained showed the effective corrosion inhibition performance of the admixture with optimal inhibition efficiency value of 95%. Identified functional groups of alcohols, phenols, amines, amides, carboxylic acids, aliphatic amines, esters and ethers within the compound completely adsorbed onto the steel from analysis of the adsorption spectra while others decreased in intensity due to partial adsorption. Thermodynamic calculations showed the cationic adsorption through chemisorption mechanism according to Langmuir and Freundlich adsorption isotherms. Micro-analytical images showed a badly corroded morphology with corrosion pits in the absence of compounds which contrast the images obtained with the compound. The compound was determined to be mixed type inhibition.
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References
Garcia-Arriaga V, Alvarez-Ramirez J, Amaya Sosa ME (2010) H2S and O2 influence on the corrosion of carbon steel immersed in a solution containing 3M diethanolamine. Corros Sci 52(7):2268–2279
Williams DE, Kilburn R, Cliff J, Waterhouse GIN (2010) Composition changes around sulphide inclusions in stainless steels, and implications for the initiation of pitting corrosion. Corros Sci 52(11):3702–3716
Williams DE, Stewart J, Balkwill PH (1994) The nucleation, growth and stability of micropits in stainless steel. Corros Sci 36(7):1213–1235
Paroni ASM, Alonso-Falleiros Magnabosco R (2006) Sensitization and pitting corrosion resistance of ferritic stainless steel aged at 800 °C. Corrosion 62(11):1039–1046
Trabanelli G (1991) Inhibitors—an old remedy for a new challenge. Corrosion 47(6):410–419
Ferreira ES, Giancomelli C, Giacomelli FC, Spinelli A (2004) Evaluation of the inhibitor effect of L-ascorbic acid on the corrosion of mild steel. Mater Chem Phys 83:129–134
James OO, Ajanaku KO, Ogunniran KO, Ajani OO, Siyanbola TO, John MO (2011) Adsorption behaviour of pyrazolo [3, 4-b] pyridine on corrosion of stainless steel in HCl solution. Trends AppL Sci Res 6(8):910–917
Felicia RS, Santhanalakshmi S, Wilson SJ, John AA, Susai R (2004) Bull Elect 20(12):561–565
Guidelli R (1992) Adsorption of molecules at metal electrodes. VCH Publishers lnc., New York, p 1
Hosseini M, Mertens SFL, Arshadi MR (2003) Synergism and antagonism in mild steel corrosion inhibition by sodium dodecylbenzenesulphonate and hexamethylenetetramine. Corros Sci 45:1473–1489
George S (2004) Infrared and Raman characteristic group frequencies: tables and charts. Wiley, New York
Acknowledgements
The author acknowledges Covenant University Ota, Ogun State, Nigeria for the sponsorship and provision of research facilities for this project.
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© 2018 The Minerals, Metals & Materials Society
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Loto, R.T., Loto, C.A., McPepple, A., Olanrewaju, G., Olaitan, A. (2018). Synergistic Effect of Benzonitrile and Benzothiazole on the Corrosion Inhibition of 316 Stainless Steel in 6M HCl Solution. In: & Materials Society, T. (eds) TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72526-0_86
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DOI: https://doi.org/10.1007/978-3-319-72526-0_86
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