NaCl溶液中铜和A_3钢接触腐蚀的研究

Study on galvanic corrosion of copper and A_3 steel in NaCl solution

研究了金属铜与A3钢在NaCl溶液中偶接时的接触腐蚀行为。考察了偶接时间、溶液中Cl-浓度、电偶对中阴阳极面积比、实验温度等因素对阳极腐蚀速度的影响。结果表明,腐蚀速度随温度升高、溶液中Cl-浓度的增大、阴阳极面积比的增大而增大;偶接时间为24 h时,腐蚀速度趋于稳定。

The galvanic corrosion behavior of copper coupled to A3 steel in NaCl solution had been stud- ied. Some factors including conjunction time, CI- concentration, the area ratio of cathode to anode and temperature on anode corrosion rate were investigated. Results showed that the increase of temperature, Cl - concentration and the area ratio of cathode stable as conjunction time was 24 h.