挤压态Mg-2Sn-1Al-1Zn合金在模拟体液中的电化学腐蚀行为

张尧, 郭晨, 刘妍慧, 郝美娟, 成世明, 程伟丽

Electrochemical Corrosion Behavior of Extruded Dilute Mg-2Sn-1Al-1Zn Alloy in Simulated Body Fluid

ZHANG Yao, GUO Chen, LIU Yanhui, HAO Meijuan, CHENG Shiming, CHENG Weili

表3 挤压态合金在不同时间间隔EIS测试结果的拟合参数

Table 3 Fitting parameters of the extruded alloy obtained from the EIS measurement for different time intervals

Immersion time / h Rs / Ω·cm2 C1 / F·cm-2 Rc / Ω·cm2 RL / Ω·cm2 L1 / H·cm-2 Rp / Ω·cm2 C1 n 0.5 65.95 3.703×10-6 0.915 811 328.77 331.4 1205.72 1 44.32 3.823×10-6 0.887 1102 402 580 1548.32 2 116.2 4.142×10-6 0.924 1574.92 460.5 0.281 2151.62 3 40.50 4.627×10-6 0.992 1408.36 203 712.7 1651.86