Browsing by Author "Subha, R"

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    Corrosion Mitigation of low Carbon Steel in Hydrochloric acid Medium by Tagetes erecta Stem Extract
    (2016) Subha, R; Saratha, R
    The corrosion inhibitive effect o f Tagetes erecta stem (TES) extract on the corrosion of mild steel in hydrochloric acid medium was studied using chemical and electrochemical studies. The maximum inhibition efficiency of 97% was obtained at 0.3%V/V concentration of the extract at room temperature. Potentiodynamic polarization study reveals that the extract controls both anodic as well as cathodic reactions. Double layer capacitance (Cdi) and charge transfer resistance (Ret) values were derived from Nyquist plots. A mechanism of adsorption of the stem components on the surface o f the metal was proposed for the inhibition behavior on the basis ofFTIR study.