Abstract
Certainly, inhibitors are widely used to reduce corrosion rates of materials in many corrosive environments. However, when the substrate suffers from aggressive corrosion, inhibition still neither efficient nor cost-effective for the substrate performance. In this study, we test a new green biopolymer (diazonium grafted biosurfactant, noted R11) as a repairer of damage that happens to a 3-years-old AA-5083 bar immersed into Dead Seawater. Mechanism reparation has been detailed. Electrochemical techniques, X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM), were used to study, analyze and confirm the effect of reparation of AA-5083 alloy using the R11 compound. The reparation efficiency reached 96%.
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