多壁碳纳米管含量对无铬锌铝涂层耐蚀性能的影响

李旭嘉, 惠红海, 赵君文, 巫国强, 戴光泽

Effect of MWCNTs Content on Corrosion Resistance of Chromium-free Zinc-aluminum Coatings

LI Xujia, HUI Honghai, ZHAO Junwen, WU Guoqiang, DAI Guangze

表3 不同多壁碳纳米管含量对应涂层的电化学阻抗谱拟合参数

Table 3 Fitting parameters of EIS of the coatings with different MWCNTs contents

Content % RsΩ·cm2 QcF·cm-2 n1 RcΩ·cm2 QfF·cm-2 n2 RfΩ·cm2 0 3.79 2.944×10-5 0.66 28.26 1.80×10-3 0.60 503.3 0.1 3.27 5.695×10-5 0.56 74.54 2.60×10-3 0.57 1059 0.3 3.16 8.655×10-5 0.48 199.5 1.95×10-3 0.53 2356 0.5 3.63 3.408×10-3 0.65 64.04 1.62×10-3 0.52 565.8 0.7 3.54 2.628×10-5 0.60 60.71 2.87×10-3 0.64 576.3