The Study on Corrosion Behaviors of Hot-Dip Aluminized Coating Formed on Low Carbon Steel by Anodic Treatment in the Sodium Chloride Aqueous Solution and High-Temperature Oxidation

• Main Authors: Che-Hao Chuang, 莊哲豪
• Other Authors: Chaur-Jeng Wang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/53667859144585051307

碩士 === 國立臺灣科技大學 === 機械工程系 === 97 === AISI 1005 steel was coated by hot-dipping into a molten pure aluminum, and then underwent an anodizing treatment to form an anodic oxide layer on the coating surface. The corrosion behavior of the modified aluminide steel was analyzed by immersion and electrochemical tests in NaCl aqueous solution and high-temperature oxidation and hot corrosion tests. The results showed that the anodized aluminide steel can not used in high-temperature oxidation and hot corrosion environment due to the spallation of the anodic alumina oxide layer caused by the thermal stress. On the other hand, the immersion and electrochemical tests in NaCl aqueous solution revealed that corrosion resistance of the aluminide steel after anodizing treatment of 60 minutes is better than the mild steel and aluminide steel, indicating that the aluminide mild steel after anodizing treatment can enhance its corrosion resistance in NaCl aqueous solution.