搅拌摩擦加工改性Mg-5Zn合金的显微组织与耐腐蚀性能

龙飞, 刘瞿, 朱艺星, 周梦然, 陈高强, 史清宇

Microstructure and Corrosion Resistance of Modified Mg-5Zn Alloy via Friction Stir Processing

LONG Fei, LIU Qu, ZHU Yixing, ZHOU Mengran, CHEN Gaoqiang, SHI Qingyu

图10 阻抗拟合所使用的等效电路图

Fig.10 Equivalent circuit diagram used for impedance fitting (a) having apparent inductive loop (Rs—solution resistance; R1 and CPE1—resistance and capacitance of the corrosion products generated on the surface, respectively; R2 and CPE2—charge transfer resistance and capacitance of the electrical double layer at the interface, respectively; R3—resistance relative to the local environmental changes near the anode; L1—an inductive component that is used to simulate the changes caused by the expansion of the active anode region) (b) without apparent inductive loop