中文摘要：

腐蚀行为和热剧降的电镀的钢的机制并且空隙免费(如果) 有碱的泥粘附的底层被扫描电子调查显微镜学(SEM ) ， X 光检查衍射(XRD ) ，电气化学的阻抗光谱学(EIS ) ，和线性极化。结果证明那不一致的腐蚀在电镀的钢上发生并且如果底层在有泥粘附的 250 h 期间。电镀的钢上的腐蚀产品很松开、多孔，它主要是 ZnO， Zn5 (哦) 8Cl2 · H 2O 和 Zn (哦) 2，并且有更低的腐蚀率的 Fe-Zn 合金层在电镀的钢表面上被暴露；然而，腐蚀产品在上如果底层更加更难、更稠密，其锈的作文主要是 FeOOH 和 Fe3O4，和几个坑出现在他们的表面上。连续 EIS 和线性极化大小的结果展出腐蚀机制，也就是说在激活下面控制，费用转移电阻介绍在电镀的钢之间的不同趋势并且如果底层；另外，线性极化电阻的进化类似于费用转移电阻的。溶解的氧和 Cl 的更高的内容？泥里的离子在加速腐蚀起一个重要作用。

英文摘要：

The corrosion behavior and mechanism of hot-dip galvanized steel and interstitial-free （IF） substrate with alkaline mud adhesion were investigated by scanning electron microscopy （SEM）, X-ray diffraction （XRD）, electrochemical impedance spectroscopy （EIS）, and linear polarization. The results show that non-uniform corrosion occurs on the galvanized steel and IF substrate during 250 h with the mud adhesion. The corrosion products on the galvanized steel are very loose and porous, which are mainly ZnO, Zn5（OH）8C12·H2O and Zn（OH）2, and Fe-Zn alloy layer with a lower corrosion rate is exposed on the galvanized steel surface; however, the corrosion products on IF substrate are considerably harder and denser, whose compositions of rust are mainly FeOOH and Fe3O4, and several pits appear on their surface. The results of continuous EIS and linear polarization measurements exhibit a corrosion mechanism, that is, under activation control, the charge transfer resistances present different tendencies between the galvanized steel and IF substrate; in addition, the evolution of linear polarization resistances is similar to that of charge transfer resistances. The higher contents of dissolved oxygen and Cl^- ions in the mud play an important role in accelerating the corrosion.