Santolina chamaecyparissus extract as a natural source inhibitor for 304 stainless steel corrosion in 3.5% NaCl

다국어 초록 (Multilingual Abstract)

The inhibitive action of Santolina chamaecyparissus extract as a natural inhibitor on corrosion of 304stainless steel in 3.5% NaCl solution was investigated by potentiodynamic polarization, EIS, and SEMtechniques. The results indicate that the extract shows mixed-type inhibition behavior and inhibitionefficiency of 86.9% was achieved with the addition of 1.0 g L 1 extract. Impedance curves show thatincreasing Santolina concentration increases charge transfer resistance and decreases double layercapacitance. The corrosion rate decreased with increasing concentration of extract and increased withthe increase in temperature of the medium. Adsorption of the extract obeyed the Langmuir isothermmodel.

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