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.

 

　　利用電化學(xué)阻抗譜來確定在不同的金屬腐蝕速率，耦合在一起，包括涂層金屬；產(chǎn)生的阻抗和相位角對頻率耦合金屬；提供相關(guān)性電容，電阻，耐腐蝕

 

　　提供了一種利用電化學(xué)阻抗譜來確定加上金屬的腐蝕率的系統(tǒng)和方法。兩種不同的金屬連接在一起，并暴露于在電化學(xué)電池的鹽水電解質(zhì)。一種可變頻率電流通過電池，并在耦合金屬收集。所收集的當(dāng)前數(shù)據(jù)的阻抗和相位角繪制經(jīng)文頻率。對所繪制的數(shù)據(jù)進(jìn)行比較，并類推到一個(gè)已知物理電子電路的圖形。當(dāng)一個(gè)匹配的圖形和電路被發(fā)現(xiàn)，用匹配圖形相關(guān)聯(lián)的腐蝕速率數(shù)據(jù)用于確定耦合金屬的腐蝕速率。