Surface Assimilation and Corrosion Inhibition Characteristics of WaterSoluble Polyvinyl Alcohol on Mild Steel Surface in 0.5 M HCl Solution

Abstract

As corrosion inhibitors for mild steel in acidic media, polymers are emerging materials due to itslarger surface coverage area. This paper focuses on the characteristic of water-soluble solvent polyvinylalcohol (PVA) at interface of mild steel under 0.5 M HCl, examined using electrochemical impedancespectroscopy, Tafel polarization, and weight reduction techniques. The findings of the study revealed thatwater-soluble polyvinyl alcohol as polymer inhibitor has restraint abilities, up to 93.7 percent for 3 hours in0.5 M hydrochloric acid. An advanced form of high spatial resolution imaging of surface of mild steel atdifferent stages was found by using scanning electron microscopy which shows that the sample immersedfor 3 hrs in 0.5 M HCl with 100 ppm of water soulble PVA inhibitor provides good inhibition quality tocorrosion on mild steel surface.