Volume 4, Issue 3, September 2020, Page: 66-80
Effect of Inhibitor Concentration and Immersion Time on the Corrosion Rate and Inhibition Efficiency of AISI 1019 Steel in Inhibited Seawater Environment
Emmanuel Iyeni, Department of Mechanical Engineering, University of Benin, Benin, Nigeria
Cornelius Oghenetega Obemure, Department of Mechanical Engineering, University of Benin, Benin, Nigeria
Received: Jan. 19, 2020;       Accepted: Sep. 17, 2020;       Published: Sep. 25, 2020
DOI: 10.11648/j.ajmme.20200403.15      View  209      Downloads  67
The effect of inhibitor concentration and immersion time on the corrosion rate and inhibition efficiency of AISI 1019 steel in seawater environment were investigated by means of weight loss measurement (WLM) at an interval of 6days for a period of 60 days. AISI 1019 steel were immersed in seawater solution in the absence and presence of varying inhibitor concentrations of potassium chromate (PC), Sodium Nitrite (SN), Methyl Orange (MO), Methyl Red (MR), Terminalia Catappa Leaves (TCL) Extract, Carica papaya Leaves (CPL) Extract. The results showed that there is an increase in inhibition efficiency with increase in inhibitor concentration and decrease in inhibition efficiency with increase in immersion time. The inorganic inhibitor (potassium chromate), inorganic inhibitor (Sodium Nitrite), the organic Inhibitor (Methyl Orange), the organic inhibitor (Methyl Red), the green inhibitor (Terminalia Catappa Leaves) and green inhibitor (Carica Papaya Leaves) produced their best inhibition efficiency of 71.94%, 634%, 68.94%, 68.32%, 62.7%, 59.79% respectively at a concentration of 10g/L. From the result obtained, the potassium chromate inhibitor has better inhibitory property than other inhibitors, which revealed that it is best suited for inhibition of corrosion of mild steel in seawater environment.
Inhibition Efficiency, Inhibitor Concentration, Corrosion Rate, AISI 1019 Steel, Seawater Environment
To cite this article
Emmanuel Iyeni, Cornelius Oghenetega Obemure, Effect of Inhibitor Concentration and Immersion Time on the Corrosion Rate and Inhibition Efficiency of AISI 1019 Steel in Inhibited Seawater Environment, American Journal of Mechanical and Materials Engineering. Vol. 4, No. 3, 2020, pp. 66-80. doi: 10.11648/j.ajmme.20200403.15
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Afolabi, A. S., 2007. Synergistic Inhibition of Potassium Chromate and Sodium Nitrite on Mild Steel in Chloride and Sulphide Media. Leornado Electronic Journal of Practices and Technology (LEJPT) Academic direct, pp. 145-153.
Aisha, H., Al-Moubarak, Awatif, A.-J. and Maryam, A., 2015. Corrosion of C-Steel in the Red Sea: Effect of Immersion Time and Inhibition Concentration. International Journal of Electrochemical Science, 1 (10), pp. 4252-4278.
Aramide, O. F., 2009. Corrosion Inhibition of AISI/SAE Steel in a Marine Environment. Leonardo Journal of Sciences, I (15), pp. 47-52.
Fontana, M. G., 1987. Corrosion Engineering. New York: McGraw-Hill.
Ijeoma, M. N. C., 1991. "Elements of Corrosion and Protection Theory". 2nd ed. Enugu: Auto century publication company limited.
Lujia, Yang., Yunze, Xu., Yesen, Zhu., Liang, Liu., Xiaona, Wang., and Yi Huang 2016. Evaluation of Interaction Effect of Sulfate and Chloride Ions on Reinforcements in Simulated Marine Environment Using Electrochemical Methods. International Journal of Electrochemical Science, XI (1), pp. 6943-6958.
Omotosho, O. A., 2016. Inhibition Evaluation of Chemical and Plant Extracts on the Corrosion of Metallic Alloys in Acidic Environment. PH. D Thesis of mechanical Engineering, 10 May. pp. 1-214.
Onyekpe, B. O., 2002. Corrosion in Oil and Gas Production. Benin city: Ambik press.
Poopola, L T., Grema, A S., Latinwo, G K., Gutti, B., Balogun, A S., 2013. Corrosion Problems During Oil and Gas Production and its Mitigation. International Journal of Industrial Chemistry, IV (36), pp. 1-15.
Selvaraj, S. K., Amalraj, J. A., Dharmalingam, V. and sahayaraj, W. J., 2016. Synergistic Corrosion Inhibition Effect Of Carbon Steel in Seawater by Propyl Phosphonic Acid - Zn2+. International Journal of Nano Corrosion Science and Engineering, April, 3 (1), pp. 79-95.
Vishnudevan, M. and Thangavel, K., 2007. A comparative study of Organic versus inorganic inhibitors for mitigation of steel in chloride contaminated alkaline solution. Indian Journal of Chemical Technology, XIV (14), pp. 22-28.
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