通过极化曲线测试、浸泡实验和表面分析技术研究了不同交流电频率对X65钢在CO32-/HCO3溶液中腐蚀行为的影响.研究表明:在30～1000Hz范围内,除200Hz外,低交流电频率时(≤300Hz),随交流电频率的减小,其钝化区宽度明显变窄,点蚀击破电位负移,维钝电流密度增大,临界钝化电流密度增大;高交流电频率时(＞ 300 Hz),频率对X65钢的钝性影响很弱.X65钢的腐蚀速率随交流电频率的增加而减小,低交流电频率作用时,X65钢的腐蚀速率随交流电频率增加快速减小,高交流电频率时,其腐蚀速率随交流电频率的增加略减小.
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