在钕铁硼（NdFeB）表面电沉积铝可提高其耐蚀性，而铝的电沉积只能在无水体系中进行。在摩尔比为2：1的A1C13-EMIC（氯化1．甲基一3-乙基咪唑）离子液体中对NdFeB表面电沉积铝，利用扫描电镜（SEM）、能谱、刻划剥离及热震试验对铝镀层的表面形貌、成分及其与基体的结合情况进行了分析，采用中性盐雾试验、极化曲线和交流阻抗谱研究了镀层的耐蚀性能。结果表明：以2．5A／dm^2电流密度对NdFeB阳极活化20min后，其表面氧化膜被有效去除，电沉积后得到致密、结合优良的铝层；NdFeB在离子液体中镀铝后耐蚀性得到显著提高，自腐蚀电流密度减小2个数量级，阻抗值增加2个数量级，中性盐雾腐蚀200h后镀层完好无损。
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