The results indicated that with the decreasing of the porosity, the self-corrosion potential of the coatings shifted from Ecorr of Fe to Ecorr of Ni-P.
腐蚀电位-时间结果表明，两种涂层的自腐蚀电位都比基体的更正，都能起到屏蔽作用保护基体，浸泡中电位向负方向移动说明活化腐蚀过程在继续。
The results indicated that with the decreasing of the porosity, the self-corrosion potential of the coatings shifted from Ecorr of Fe to Ecorr of Ni-P.
腐蚀电位-时间结果表明，两种涂层的自腐蚀电位都比基体的更正，都能起到屏蔽作用保护基体，浸泡中电位向负方向移动说明活化腐蚀过程在继续。
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