摘要：Sn-TiO2 nanocomposite coatings were prepared by sol-gel enhanced electrodeposition technique and the effect of c concentration on the performance of the composite coatings was investigated by adding different volumes of TiO2 sol to the electrolyte. The microscopic morphology and corrosion resistance of the coatings were characterized by XRD tests, SEM tests, hardness tests and a series of electrochemical tests. From the test results, it was found that the coating had the highest hardness value and the best corrosion resistance when the TiO2 sol was added at 15 mL/L; however, when the TiO2 sol concentration was too large, the corrosion resistance and hardness value of the Sn-TiO2 composite coating decreased significantly due to the destruction of the crystal structure and coating structure by the agglomerated TiO2 nanoparticles in the coating.
