通过盐雾实验、稳态阳极极化曲线和电化学阻抗谱3种测试 方法，对磷化底漆和阿洛丁(1200)化学转化膜进行了测试，结果发现磷化底漆的耐蚀性明显 优于阿洛丁化学转化膜.在中性盐雾实验10个周期中，阿洛丁化学转化膜腐蚀明显，而磷化 底漆完好如初.在稳态和弱极化区，两者抗蚀性能相似，而在强极化区，磷化底漆明显优于 阿洛丁化学转化膜.在电化学阻抗谱上，磷化底漆极化电阻(Rp)比阿洛丁转化膜高1个 数量级.
Phosphating primer and anoding chemical conversion film were measured using 3 measurement of salt spray corrosion tests,potentiosta tic anodic polarization curves and electrochemical impedance spectroscopy(EIS).I t were discovered from the result that corrosion-resistance of phosphating pri mer was still better by comparison with anoding chemical conversion film.Anoding chemical conversion film was markedly corroded but phosphating primer was as th e same as original state in 10 cycles of neutral salt spray corrosion tests.Corr osion-resistance of both was similar within the part of stable state and weak po caviztion,but corrosion-resistance of phosphating primer was obviously better th an anoding chemical conversion film within the part of strong polarization.Polar ization resistance (Rp) of phosphating primer was a order of magnitude hig her ghan anoding chemical conversion film on EIS.
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