SUSTAINABILITY OF ALUMINIUM ALLOY AA8011 STRUCTURAL INTEGRITY USING Moringa Olifera LEAVES EXTRACT..

The effects of Moringa oleifera (MO) leaves extract on the corrosion of aluminium alloy AA8011 in 1.0 M hydrochloric acid (HCl) were investigated utilising weight loss and electrochemical techniques. For this grade of aluminium alloy, a summary of corrosion rates at various concentrations over time revealed that the 0.5g/L concentration gave the least rate of corrosion. Moringa oleifera has an inhibitory effect on aluminium alloy corrosion, according to the findings. Furthermore, using the Electrochemical Impedance Spectroscopy (EIS) method, the Nyquist plots of aluminium alloy for varied concentrations of Moringa oliefera leaves extract were produced. The inhibitive character of Moringa oleifera leaves extract on the corrosion of aluminium alloy was established by electrochemical impedance measurements, which showed that the corrosion current density dropped as the extract concentration increased. Furthermore, Tafel polarisation technique results for potentiodynamic polarisation measurement of aluminium alloy demonstrated that the extract operated as a mixed type inhibitor. Moringa oleifera leaf extract is an excellent inhibitor of aluminium corrosion in acidic media, according to the findings. As a result, the conclusions of this study will account for effective management of manufacturing sectors that use metals such as aluminium alloys.

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