利用湿热试验、盐水浸渍试验及电化学测试方法评价了膜的耐蚀性能。
The anticorrosive property of the conversion film was examined intensively by moisture and heating test, salt solution immersion test and electrochemical method.
盐水浸渍法试验结果证明了成膜后LY12铝合金表面的腐蚀速率明显降低；
The data of salt solution immersion test indicate that corrosion rate of aluminium alloy LY12 with ceria thin film is decreased.
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