2A12铝合金锆基转化膜的制备及性能研究

于宏飞, 邵博, 张悦, 杨延格

Preparation and Properties of Zr-based Conversion Coating on 2A12 Al-alloy

YU Hongfei, SHAO Bo, ZHANG Yue, YANG Yange

表1 2A12铝合金基体与锆基转化膜的拟合参数结果

Table 1 Electrochemical fitting parameters of bare 2A12 Al-alloy and ZrCC

Material Rs / Ω·cm2 Y0 / Ω-1·cm-2·s-1 n Rf / Ω·cm2 Y0 / Ω-1·cm-2·s-1 n Rct / Ω·cm2 Bare 15.21 2.696×10-5 0.9332 3532 1.266×10-4 0.8378 2.064×104 ZrCC 15.46 2.325×10-4 0.8168 1848 7.387×10-4 0.9787 574.9