Effects of Atmospheric Environment on Corrosion of Wind Turbines

Carbon steel was exposed to two typical atmospheres of Eman in Hainan province and Pinglu in Shanxi province for one year, and the content of chloride ion and sulfate ion in atmospheres of two areas was continuously monitored. The corrosion morphology and composition of corrosion products were analyzed with scanning electron microscopy (SEM) and X-ray diffraction (XRD). The experimental results show that the corrosion rate of carbon steel was high in both test sites. The corrosion class of carbon steel in atmosphere of Eman in Hainan province was C5, in Eman atmosphere the high content of chloride and sulfate ion resulted in the high corrosion rate of carbon steel. The corrosion class of carbon steel in atmosphere of Pinglu in Shanxi province was C4, the high content of sulfate ion was the main reason for serious corrosion of carbon steel in this area.