为了弄清3种典型接地金属材料（H62黄铜、Q235钢、镀锌钢）在陕西土壤中的腐蚀情况，采用失重法（外加电流浸泡）、电化学测试、扫描电镜（SEM）和x射线衍射（XRD）研究了其在陕西中部土壤模拟液中的腐蚀行为和电化学规律。结果表明：在有外加电流的模拟液中浸泡，随浸泡时间延长，Q235钢腐蚀速率逐渐变慢，镀锌钢表面镀锌层腐蚀较快，H62黄铜的腐蚀速率变化不大；Q235钢、镀锌钢、H62黄铜的腐蚀产物分别主要为Ot-FeOOH、p-FeOOH、Fe304，ZnO、Zn（OH）2、FeOOH、Zn5（C03）2（OH）6和Cu20、CuO、CuCl2；在含相同NaCl浓度的模拟液中，H62黄铜的耐腐蚀性能最好，镀锌钢的次之，Q235钢的最差。
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