【摘要】 利用电化学交流阻抗方法研究了铝镁阳极型强屏蔽涂层的电化学阻抗谱特征。通过对涂层阻抗图谱解析,提出其在浸泡初期特征等效电路为[Rs(CdRt(RoL))],随浸泡时间的延长,其等效电路可用[Rs(Cc(Rc(CdRt)))]来描述。讨论了阻抗谱特征变化与铝镁涂层结构及性能变化的关系,同时对铝镁阳极颜料在涂层中的作用机理进行理论推导。更多还原

【Abstract】 The EIS characteristics of an anodic type anticorrosion coating prepared with Al-Mg alloy were studied.Through fitting and analyzing the Nyquist graphs,the characteristic equivalent circuit was put forward,the relationship between the change of EIS and film property was discussed.The effect mechanism of Al-Mg alloy anodic pigment was theoretically deduced.更多还原