为解决镁合金工件在加工过程中短期存放时容易发生腐蚀的问题,在相对湿度80％和温度50℃的湿热条件下,对比了F35防锈油、KH69硅烷和KH460硅烷对AZ31镁合金的防护效果.结果表明:KH69硅烷处理后的镁合金经过15天的湿热试验,未出现肉眼可见的腐蚀,在显微镜下也只观察到轻微点蚀,与F35防锈油的防锈性能相当,且轻微的沉淀对其防锈性能影响不大；KH460硅烷处理镁合金也可获得良好的耐蚀性,但不及KH69硅烷.
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