利用电化学交流阻抗技术研究CO2-3浓度变化对2205DSS在盐卤中耐孔蚀行为的影响;采用失重试验法进行加速腐蚀试验,并与电化学实验结果进行对比;使用原子力显微镜表征2205DSS的腐蚀形貌图,计算小孔的平均深度,分析表面粗糙度.结果表明:随着卤水中CO2-3浓度的增大,2205DSS耐孔蚀性能先略微增强后迅速减弱;随浸泡时间的增加,2205DSS的耐孔蚀性能先减弱,然后增强;EIS呈现明显的容抗性.随反应条件的不同,基体表面膜的成分中容易生成FeCO3或(Fe,Ca)CO3复合盐.
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