Corrosion behavior of T2 copper in 3.5% sodium chloride solution treated by rotating electromagnetic field
(1. School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China;
2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
3. Institute of Electromagnetic and Electronic Technology, Harbin Institute of Technology, Harbin 150001, China)
2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
3. Institute of Electromagnetic and Electronic Technology, Harbin Institute of Technology, Harbin 150001, China)
Abstract: Copper is susceptible to producing corrosion problems in corrosive environments, which leads to serious safety problems. Thus, investigating the corrosion behavior of copper is of great significance. The effects of rotating electromagnetic field on corrosion behavior of T2 copper in 3.5% sodium chloride solution with electrochemical measurements were investigated. The results showed that rotating electromagnetic field changed properties of 3.5% sodium chloride solution by increasing the values of temperature and pH and decreasing the values of conductivity and dissolved oxygen. The rotating electromagnetic field improved the corrosion resistance of T2 copper. The corrosion products of T2 copper in treated 3.5% sodium chloride solution were composed of Cu2O and CuCl. The low corrosion rate of T2 copper was resulted from the decrease of dissolved oxygen in 3.5% sodium chloride solution treated by rotating electromagnetic field.
Key words: corrosion behavior; rotating electromagnetic field; electrochemical measurement; copper