采用极化曲线测试和交流阻抗技术研究了Galvalume镀层钢在青岛海域海水中的耐蚀性能,利用电子扫描电镜对镀层表面的腐蚀产物形貌进行了分析,详细探讨了海水温度和溶解氧浓度对Galvalume镀层钢电化学腐蚀行为的影响.结果表明:温度升高,破坏了保护性腐蚀产物膜在镀层表面的吸附,促进了阳极活化反应过程.低浓度的溶解氧抑制了阴极反应,镀层的耐蚀性能提高.
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