3.5%NaCl溶液中硝基巴比妥酸对AZ31B与AZ91D镁合金腐蚀的缓蚀作用及机理研究

翟亚如, 熊金平, 赵景茂

Corrosion Inhibition Performance of Nitrobarbituric Acid on Mg-alloys AZ31B and AZ91D in 3.5%NaCl Solution

ZHAI Yaru, XIONG Jinping, ZHAO Jingmao

表4 两种镁合金极化曲线利用CView软件拟合得到的电化学参数

Table 4 Electrochemical parameters of potentiodynamic polarization curves of two Mg-alloys obtained by fitting using CView software

Mg-alloy Solution Ecorr / V vs.SCE Icorr / A·cm-2 ηi / % AZ31B 3.5%NaCl -1.41 2.21 × 10-5 - 3.5%NaCl + 1 g/L NBA -1.27 6.02 × 10-6 72.8 AZ91D 3.5%NaCl -1.32 6.44 × 10-6 - 3.5%NaCl + 1 g/L NBA -1.37 6.96 × 10-5 -980.7