Spring International Engineering Research Journal

ISSN 3121-8733

Eco-Friendly Corrosion Inhibition of Welded Mild Steel in Hydrochloric Acid Using Akee Apple (Blighia sapida) Seed Extract


Abstract

An investigation was carried out regarding the corrosion inhibition properties of akee apple (Blighia sapida) seed extract on welded mild steel in hydrochloric acid solutions, utilizing mass loss and temperature-based measurement techniques. Tests took place under ambient conditions employing inhibitor concentrations of 0.1, 0.3, and 0.5 g/L within the acidic solution. Outcomes demonstrate the seed extract acts as a competent corrosion inhibitor for mild steel, showing effectiveness across all concentration ranges studied. Inhibition efficacy proved to increase proportionally with higher inhibitor concentrations, suggesting a clear concentration-dependent mechanism. Performance was notable, with inhibition reaching approximately 44.4% and 48% in mass loss and temperature measurements respectively. These observations imply akee apple seed extract holds promise as a viable, environmentally sustainable option for corrosion control in mild steel structures within acidic settings.

 

Keywords: Mild steel, Akee apple seed extract, corrosion inhibition, hydrochloric acid, weight loss, thermometric measurement, eco-friendly inhibitors.