核桃青皮提取物与碘化钾对钢在柠檬酸中的缓蚀协同效应

王丽姿, 黄苗, 李向红

Synergistic Inhibition Effect of Walnut Green Husk Extract and Potassium Iodide on Corrosion of Steel in Citric Acid Solution

WANG Lizi, HUANG Miao, LI Xianghong

表2 25 ℃时冷轧钢在1.0 mol/L H₃C₆H₅O₇中不含和含有WGHE、KI及WGHE/KI的动电位极化曲线参数

Table 2 Potential polarization parameters of cold rolled steel in 1.0 mol/L H₃C₆H₅O₇ solutions without and with WGHE, KI and WGHE/KI at 25 ℃

Inhibitor	E_corrmV vs. SCE	I_corrμA·cm^-2	-b_cmV·dec^-1	b_amV·dec^-1	η_p%
---	-417	102	223	66	---
WGHE	-431	62	207	55	39.2
KI	-431	26	167	46	74.5
WGHE+KI	-461	14	154	40	86.3