再生镁合金表面微弧氧化/水滑石复合膜层的一步法制备及其耐蚀性能研究

张云, 张宇鹏, 董泽华, 张欣欣

One-step Preparation and Corrosion Performance of Micro-arc Oxidation/hydrotalcite Composite Film on Recycled Mg-alloys

ZHANG Yun, ZHANG Yupeng, DONG Zehua, ZHANG Xinxin

表2 Recycled Mg-MAO和Recycled Mg-MAO/LDH的EIS拟合结果

Table 2 EIS fitting results of recycled Mg-MAO and recycled Mg-MAO/LDH

Sample Rs / Ω·cm2 Qf / F·cm-2 nf Rf / Ω·cm2 Qdl / F·cm-2 ndl Rct / Ω·cm2 Rp / Ω·cm2 Mg-MAO 12.21 7.1 × 10-8 0.81 564 1.7 × 10-5 0.51 16290 16854 Mg-MAO/LDH 12.65 3.2 × 10-7 0.72 2279 2.7 × 10-6 0.65 18450 20729