摘要
本文采用塔菲尔极化曲线法和交流阻抗法,研究了OH-、SO42-、S2O32-、PO42-、Cl-等阴离子对600镍基合金腐蚀电化学行为的影响,并初步分析了其腐蚀电化学行为的机理。结果表明:电解质的存在能显著加快600镍基合金的腐蚀速度;测试的各种阴离子中对其腐蚀加速的影响依次为:S2O32-,PO42-,SO42-,OH-,Cl-。
In this paper, the corrosion behaviors of Alloy 600 effected by the anions, including OH^-、SO4^2-、S2O3^2-、PO4^2-、Cl^-, were investigated by AC impedance technique and Tafel technique. And the machanism of electrochemical corrrosion behavior of Alloy 600 was analysed roughly. The results show that anions could accelerate corrosion velocity of Alloy 600 markably; And the effect to the corrosion of Allay 600 ranks as S2O3^2-,PO4^2-,SO4^2-,OH^-,Cl^-.
出处
《全面腐蚀控制》
2011年第6期45-48,共4页
Total Corrosion Control
基金
长沙理工大学"电力与交通材料保护湖南省重点实验室"开放基金资助项目