Effect of Temperature Study on Low Carbon Steel in Hydrochloric Acid Medium using Novel Organic Inhibitor

Abstract

Weight loss measurements and EIS-electrochemical impedance spectroscopy were applied to examine and compare the inhibitory effectiveness of piperazin derivative [4-(4-aminobenzoyl)-piperazin-1-yl]-(furan-2-yl) methanone (4-4-ABPFM) on the mild steel corrosion of in acidic media of 1N hydrochloric acid at different temperatures (303 and 313 K). Compound (4-4-ABPFM) exhibits mixed-type inhibitory behavior and suppresses both the cathodic and anodic processes, according to potentiodynamic polarization tests. It was discovered that the composition of the compounds under investigation mostly determined the inhibitory efficiency, and changes in impedance characteristics are suggestive of these compounds' adsorption on the metal surface. Additionally, these investigations have demonstrated the effectiveness of (4-4-APBFM) as an inhibitor on low carbon- MS in 1N HCl medium at two temperatures. The effectiveness of the inhibitor on mild steel is also revealed by surface morphological analyses like SEM.