Investigation of Al2O3-TiO2 Nanocomposite Coatings Effects on Corrosion Behavior of Low-carbon Steels

In this research, alumina – titania nanoparticles in thin-film forms in different alcoholic environments such as ethanol, butanol and isopropanol were coated on st12 steel substrates by electrophoretic process and coating operations was performed at different voltages, as well as chronoamperometry method has been used to investigation of the mechanism of nucleation and surface qualities of coatings. in the measurment the weight of the coating test showed that the weight of the coating increased via increasing voltage as well as in the measurement results of coatings weight and their quality viewing showed that coating weight changes with voltage (electrical field intensity) and time follow the hamaker relationship. morphology of the synthesized coatings were evaluated by using the field emission scanning electron microscope and the average thickness were determined through the mip metallography application. the corrosion behavior of uncoated steel and coated steel samples has been evaluated via potentiodynamic polarization and electrochemical impedance spectroscopy tests.