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Surface and Electrochemical Behaviour of Carbon Steel in Neutral aqueous Environment

Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.3, No. 10)

Publication Date:

Authors : ; ; ;

Page : 370-375

Keywords : : AFM; EIS spectra; DTPMP; Carbon Steel; Neutral Environment; Sodium Molybdate;

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Corrosion inhibiton of Carbon Steel immersed in 60 ppm Cl- has been investigated in presence and absence of Zn2+ ions. The Weight ? loss method is used to find the Inhibition Efficiency of the inhibitors. The formulation consists of 50 ppm of DTPMP, 10 ppm of Sodium Molybdate (SM), 10 ppm Zn2+ and it gives the maximum IE of 90%. When inhibitors used alone that gives some IE. But their combination in particular proportion shows the maximum IE is otherwise called as Synergistic Effect. The Electrochemical impedance spectroscopy (EIS) indicates that the formation of protective film on the surface of metal. The Atomic Force Microscopy also confirms the formation of film by the way of increasing in smoothness of the surface of Carbon Steel.

Last modified: 2014-10-30 17:34:26