中文摘要：

分别采用极化曲线和电化学阻抗测试研究了车用镁合金（AZ91D）在含NaCl、CaCl2、NH4Cl溶液的腐蚀行为,了解不同阳离子类型对镁合金腐蚀作用的影响。

英文摘要：

The corrosion behavior of AZ91 D was studied in NaCl, CaCl2, and NH4CI solution by the potentiody - namic polarization curves and electrochemical impedance spectroscopy （EIS） to understand the influence of different cation types on corrosion of magnesium alloy.