Anti-corrosion Performance of Nano-organic Coatings on 16MnR

The anti-corrosion performance of nano-organic coatings on 16MnR was investigated by exposure experiments in cavern atmosphere and laboratory accelerated corrosion tests. The laboratory accelerated corrosion test including gaseous accelerated experiment and liquid accelerated test. The 16MnR samples without coating were corroded in gas and liquid accelerated corrosion tests only after about 100 h, the corrosion area reached 100%. After 4500h accelerated corrosion test under the same accelerated condition, the molecular structure and surface morphology of the 16MnR samples with nano-organic coatings were not destroyed and corroded basically. Comparison of the corrosion products indicates that, the results of gas accelerated experiment are closer to those in site.