机载电子电气设备缓蚀剂的评价

采用塔菲尔(Tafel)曲线法和电化学阻抗法(EIS)2种电化学方法评价了 4种不同型号的电子电气缓蚀剂在天然海水中对 T2铜合金、H62铜合金以及 2Al2-T4铝合金的缓蚀效果。对于 T2铜合金,缓蚀剂的缓蚀效率从高至低依次为 DZ-1、TFHS-20、DJB-823、WD-40；对于 H62铜合金,缓蚀效率从高至低依次为 DZ-1、DJB-823、WD-40、 TFHS-20；对于 2Al2-T4铝合金,缓蚀效率从高至低依次为 DZ-1、WD-40、DJB-823、TFHS-20。4种缓蚀剂中,DZ-1缓蚀剂 Tafel曲线法和 EIS法得到的缓蚀效率都高于 99.5%,所以,对于 T2铜合金、H62铜合金以及 2Al2-T4铝合金 3种金属材料来说,DZ-1是 4个型号的缓蚀剂中效果最优的。

Evaluation of Corrosion Inhibitors for Airborne Electrical and Electronic Equipment

The corrosion inhibition effect of four electronics corrosion inhibitors on T2 copper alloy, H62 copper alloy and 2Al2-T4 aluminum alloy in natural seawater is evaluated by Tafel curve method and electrochemical impedance spectrosco.py(EIS). The results show that the corrosion inhibition efficiency order of corrosion inhibitors from highest to lowest is DZ-1,TFHS-20, DJB-823, WD-40 to T2 copper alloy, DZ-1, DJB-823, WD-40, TFHS-20 to H62 copper alloy, and DZ-1, WD-40,DJB-823, TFHS-20 to 2Al2-T4 aluminum alloy. Among the four corrosion inhibitors, both Tafel curve method and EIS of DZ-1 corrosion inhibitor have higher corrosion inhibition efficiency than 99.5%, so for T2 copper alloy, H62 copper alloy and 2Al2-T4 aluminum alloy, DZ-1 is the optimum corrosion inhibitor among the four corrosion inhibitors.