Anodizing of pure aluminum alloy with incorporated ferric oxide nanoparticles to enhance the aluminum corrosion resistance

In this work, Pure Aluminum alloy (PuAl) was Enhanced by Anodizing and incorporating Fe3O4 nanoparticles to improve its corrosion-resistant. The titanium sheet was used as a counter electrode and the DC voltage reach 20mV while the anodizing solution was 20% H2SO4 while the H2SO4 was mixed with the Ferric Oxide nanoparticle to incorporate the PuAl surface. Anodizing and incorporation with (Fe3O4) NPS were confirmed by X-ray diffraction. The surface morphology of anodized and incorporated surfaces was examined through scanning electron microscopy (SEM), and EDX. Modification of PuAl by Anodizing and nanoparticle incorporation revealed a good corrosion protection efficiency even at temperatures ranging (298-328) K in a saline medium. Where the corrosion current density increases with the increase in temperature. Apparent Activation energy and pre-exponential factor (kinetic parameters) were calculated and discussed. Also, thermodynamic values ΔG* and ΔH* were calculated.