Abstract
The current behavioral study investigated the effect of incorporation of two nanomaterials namely reduced graphene oxide(r-GO) and Titanium di oxide (TiO2) (synthesized by chemical reduction method) upon improving the corrosion resistance of pure Magnesium (Mg). Crystalline nature of synthesized TiO2 was analyzed through x-ray diffraction; UV vis spectroscopy showed its UV absorbance peak near 300 nm. TiO2, r-GO and r-GO/TiO2 coating over Mg is done by the way of electrode position technique for different time intervals. Analysis over electrochemical corrosion behaviour reveals that Mg coated with r-GO/TiO2 showcased better corrosion resistance when compared to bare Mg. Energy-dispersive X-ray spectroscopy and element mapping results exposed for the elementary confirmation as well as uniform dispersion of nano materials. Reduction in corrosion rate is notified for samples coated at 3 min time interval. Improvement in corrosion resistance of r-GO/TiO2 coatings is mainly due to the high impermeability of r- GO to resist Mg2+ ions dissolution in chloride media.
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