Investigation of production and performance of corrosion resistant composite material

In this research, In this study, the effect of different coating contents on the corrosion resistance of AISI 304 steel surface was investigated. Coatings containing Zn acetate (A), titanium isopropoxide (B), cerium oxide (C) and zirconium isopropoxide (D) were compared with uncoated surface (R). The aim of the study was to evaluate the effectiveness of the coatings against corrosion and to determine the most suitable coating composition. In the experiments, the coating performances were investigated in detail using open circuit potential (OCP), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. In addition, surface morphology and coating homogeneity were evaluated by contact angle measurements and microscope images. The results showed that the uncoated surface (R) had the lowest corrosion resistance, while sample A could not offer a sufficient barrier effect due to its poor performance. Sample B with titanium isopropoxide exhibited the best corrosion resistance with the lowest corrosion current density, highest impedance values and positive corrosion potential. Coatings containing zirconium izopropoxide (C) and cerium oxide (D) performed moderately, providing a significant improvement over the uncoated surface but exhibiting lower resistance than specimen B. Contact angle measurements revealed that sample C had a hydrophobic surface structure, while sample D showed a hydrophilic character. Microscope images showed that sample B had a homogeneous and robust coating structure, whereas the coating on sample A was inadequate and uneven. This study reveals that coating ingredients should be carefully selected to improve corrosion resistance on AISI 304 steel surfaces and that coatings containing titanium isopropoxide in particular have high protection potential. The results of the study provide guidance in the selection of coating materials for industrial applications.