Evaluation of corrosion resistance of magnesium alloy ZK10 coated with hybrid organic-inorganic film including containers

摘要

This study is focused on the corrosion protection of magnesium alloy ZK 10. Coatings consist of cross linked polymers based on bisphenol A diglycidyl ether as well as organic modified silicates including cer ium molybdate containers were synthesized and applied to the metal alloys. The films were investigated for their morphology and nanomechanical properties. Corrosion studies were made using open circuit potential, cyclic potentiodynamic polarization and electrochemical impedance spectroscopy after immer sion in 0.5 M sodium chloride solution. The evaluation of possible self-healing effect was made via forma tion of artificial defect on the surface of the coatings and consequently exposure to corrosive environment.