A system and method of use is provided for using electrochemical impedance spectroscopy to determine the corrosion rates of coupled metals. Two dissimilar metals are coupled together and exposed to a saltwater electrolyte in an electrochemical cell. A variable frequency current is passed through the cell and collected at the coupled metals. The impedance and phase angle of the collected current data are plotted verses frequency. The plotted data are compared to and analogized to a known plot for physical electric circuits. When a matching plot and circuit are found, the corrosion rate data associated with the matched plot are used to determine the corrosion rates of the coupled metals.

 

　　利用电化学阻抗谱来确定在不同的金属腐蚀速率，耦合在一起，包括涂层金属；产生的阻抗和相位角对频率耦合金属；提供相关性电容，电阻，耐腐蚀

 

　　提供了一种利用电化学阻抗谱来确定加上金属的腐蚀率的系统和方法。两种不同的金属连接在一起，并暴露于在电化学电池的盐水电解质。一种可变频率电流通过电池，并在耦合金属收集。所收集的当前数据的阻抗和相位角绘制经文频率。对所绘制的数据进行比较，并类推到一个已知物理电子电路的图形。当一个匹配的图形和电路被发现，用匹配图形相关联的腐蚀速率数据用于确定耦合金属的腐蚀速率。