Electrochemical corrosion resistance and susceptibility of 12Cr martensitic stainless steel in H2SO4

Loto, C. A. and Fayomi, O. S. I and Loto, R. T. and Popoola, A. P. I. (2015) Electrochemical corrosion resistance and susceptibility of 12Cr martensitic stainless steel in H2SO4. Journal of Chemical and Pharmaceutical Research, 7 (10). pp. 39-48. ISSN 0975-7384

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Abstract

Corrosion susceptibility and inhibition of 12Cr martensitic stainless steel was evaluated in different sulphuric acid and the acid chloride concentrations. Corrosion inhibition of the tested samples in 1M H2SO4 was evaluated using potassium dichromate of different concentrations. The experiments were performed at ambient temperature using potentiodynamic polarization measurement. This paper reports the observed electrochemical response of the tested samples in the strong acid environments. Potentiodynamic polarization resistance technique was used to estimate the corrosion rate, the polarisation resistance and inhibition of the alloy samples tested. The results obtained showed some varied magnitude of corrosion susceptibility for the stainless steel at the different H2SO4 concentrations and also in the acid chloride test media. Corrosion inhibition of the tested samples was effectively achieved using the potassium dichromate inhibitor.

Item Type:	Article
Uncontrolled Keywords:	Martensitic stainless steel, corrosion, polarization, sulphuric acid, potassium dichromate, inhibition.
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	20 Oct 2016 10:54
Last Modified:	20 Oct 2016 10:54
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/7345

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