Eco-friendly organic inhibitors for enhancing the corrosion resistance of Al- 2024 alloy

This study presents an innovative approach to enhancing the corrosion resistance of Al-2024 alloy, widely used in aerospace, marine, and other demanding environments. The research investigates the synergistic effects of organic inhibitors ( amoxicillin and oxiconazole nitrate ) and surface treatments (sand-blasting and heat treatment). The impact of these methods on corrosion resistance was evaluated using potentiodynamic polarization (PD) and electrochemical impedance spectroscopy (EIS) techniques. The results reveal that surface treatments significantly improve the corrosion resistance. Heat treatment and sand-blasting enables stronger adhesion of the inhibitors to the alloy surface. Among the organic inhibitors, amoxicillin demonstrated superior performance with a high inhibition efficiency of 96.1%, while oxiconazole , combined with sand-blasting, also provided effective protection. This study highlights the groundbreaking potential of combining surface treatments with organic inhibitors to enhance the corrosion resistance of the Al-2024 alloy. The findings obtained contribute to the development of sustainable and environmentally friendly corrosion control strategies. By offering innovative solutions for improving the corrosion resistance, this study establishes a solid foundation for future research and engineering applications in both academic and industrial settings.