Investigation of corrosion behaviour of X70 microaloy steel in acidic environment in one molar sulfuric acid solution in the presence of benzomidazole and methyl benzomidazole
Subject Areas : Journal of New Applied and Computational Findings in Mechanical Systemsمهدی بروجردنیا 1 , Mohammad Yazdizadeh 2
1 - گروه مهندسی مواد و متالورژی، دانشگاه آزاد اسلامی، واحد اهواز، اهواز، ایران
2 - Department of Materials Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Corresponding author: Mehdi Boroujerdnia
Keywords: Methyl benzomidazole, Benzomidazole, Corrosion behavior, Microalloy steel,
Abstract :
In the present study, two inhibitors, benzomidazole and methyl benzomidazole, were used to prevent corrosion of X70 micro-alloy steel in acidic environment in one molar of sulfuric acid. For this purpose, both inhibitors in different concentrations were investigated in order to find the best concentration, temperature and efficiency of weight loss tests, polarization and electrochemical impedance spectroscopy (EIS). The chemical composition of the sample was obtained by quantum test and the sample with dimensions of 100 × 50 × 10 mm was prepared in 20 pieces. Corrosion protection performance of inhibitors in 1 M sulfuric acid solution for weight loss test after 10 days of immersion and also in polarization and impedance tests using Auto Lab and Nova1.11 software were evaluated. . As a result, the best inhibitory efficiency of benzomidazole at a concentration of 600 ppm was equal to 37% and methyl benzomidazole at a concentration of 400 ppm equal to 30%, and in the combined state of these two solutions have the ability to increase corrosion efficiency up to 73%. As a result, both of these inhibitors showed practical ability to be used in industrial environments.
[1] Verlinden, B., Driver, J., Samajdar, I. and Doherty, R.D., (2007). Thermo-mechanical processing of metallic materials. Elsevier. 11, pp 423-431.
[2] Davis, J., (2001). Alloying. Understanding the Basics, ASM International, Materials Park, OH, pp44073-0002.
[3] Faizabadi, M.J., Khalaj, G., Pouraliakbar, H. and Jandaghi, M.R., (2014). Predictions of toughness and hardness by using chemical composition and tensile properties in microalloyed line pipe steels. Neural Computing and Applications, 25(7), pp1993-1999. [4] Reip, C.P., Shanmugam, S. and Misra, R.D.K., (2006). High strength microalloyed CMn (V–Nb–Ti) and CMn (V–Nb) pipeline steels processed through CSP thin-slab technology: Microstructure, Precipitation and Mechanical Properties. Materials Science and Engineering: A, 424(1-2), pp 307-317.
[5] Smith, Y., Coldren, A. and Cryderman, R., (1972). Toward improved ductility and toughness. Climax Molybdenum Company (Japan) Ltd., Tokyo, 119.
[6] Xiao, F., Liao, B., Ren, D., Shan, Y. and Yang, K., (2005). Acicular ferritic microstructure of a low-carbon Mn–Mo–Nb microalloyed pipeline steel. Materials Characterization, 54(4-5), pp 305-314.
[7] Bakkaloglu, A., (2002). Effect of processing parameters on the microstructure and properties of an Nb microalloyed steel. Materials Letters, 56(3), pp 200-209.
[8] Jiao, D.T., Cai, Q.W., Wu, H.B. and Ren, Y., (2010). Effect of Nb on austenite recrystallization in high temperature deformation process. Journal of Iron and Steel Research International, 17(8), pp 39-44. [9] Hashemi, S.H. and Mohammadyani, D., (2012). Characterisation of weldment hardness, impact energy and microstructure in API X65 steel. International Journal of Pressure Vessels and Piping, 98, pp 8-15. [10] Calvo, J., Jung, I.H., Elwazri, A.M., Bai, D. and Yue, S., (2009). Influence of the chemical composition on transformation behaviour of low carbon microalloyed steels. Materials Science and Engineering: A, 520(1-2), pp 90-96.
[11] Korczak, P., (2004). Modeling of steel microstructure evolution during thermo-mechanical rolling of plate for conveying pipes. Journal of Materials Processing Technology, 153, pp 432-435.
[12] Anijdan, S.M. and Yue, S. (2011). The necessity of dynamic precipitation for the occurrence of no-recrystallization temperature in Nb-microalloyed steel. Materials Science and Engineering: A, 528(3), pp 803-807.
[13] Touir, R., Cenoui, M., El Bakri, M. and Touhami, M.E., 2008. Sodium gluconate as corrosion and scale inhibitor of ordinary steel in simulated cooling water. Corrosion Science, 50(6), pp 1530-1537.
[14] Heitz, E ,. (1974). Corrosion of metals in organic solvents, in Advances in Corrosion Science and Technology, pp 149-243.
[15] Aljourani, J., M. Golozar, and K. Raeissi, (2010). The inhibition of carbon steel corrosion in hydrochloric and sulfuric acid media usingsome benzimidazole derivatives. Materials chemistry and physics, 121(1-2), pp 320-325.
[16] Zhang, H.H., Gao, K., Yan, L. and Pang, X., (2017). Inhibition of the corrosion of X70 and Q235 steel in CO2-saturated brine by imidazoline-based inhibitor. Journal of Electroanalytical Chemistry, 791, pp 83-94. [17] Zuo, Y., Yang, L., Tan, Y., Wang, Y. and Zhao, J., (2017). The effects of thioureido imidazoline and NaNO2 on passivation and pitting corrosion of X70 steel in acidic NaCl solution. Corrosion Science, 120, pp 99-106. [18] Ralkhal, S., Shahrabi, T., Ramezanzadeh, B. and Bahlakeh, G., (2019). A combined electrochemical, molecular dynamics, quantum mechanics and XPS analysis of the mild steel surface protected by a complex film composed of neodymium (III) and benzimidazole. Applied Surface Science, 464, pp 178-194. [19] Amin, M.A. and Khaled, K.F., (2010). Monitoring corrosion and corrosion control of iron in HCl by non-ionic surfactants of the TRITON-X series–Part I. Tafel polarisation, ICP-AES and EFM studies. Corrosion science, 52(5), pp 1762-1770. [20] Dutta, A., Saha, S.K., Adhikari, U., Banerjee, P. and Sukul, D., (2017). Effect of substitution on corrosion inhibition properties of 2-(substituted phenyl) benzimidazole derivatives on mild steel in 1 M HCl solution: a combined experimental and theoretical approach. Corrosion Science, 123, pp 256-266.
