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| Zn-Al涂层腐蚀电化学行为研究 | |
| 引用本文： | 刘毅,魏世丞,王玉江,徐滨士. Zn-Al涂层腐蚀电化学行为研究[J]. 功能材料, 2011, 0(Z2) |
| 作者姓名： | 刘毅 魏世丞 王玉江 徐滨士 |
| 作者单位： | 装甲兵工程学院装备再制造技术国防科技重点实验室; |
| 基金项目： | 国家自然科学基金重点资助项目(50735006),国家自然科学基金资助项目(50971132); 国家科技支撑计划资助项目(2007BAB27B02-04) |
| 摘 要： | 通过电化学交流阻抗谱(EIS)研究了Zn-Al涂层在铜加速醋酸盐雾试验中的腐蚀行为,建立了等效电路模型并分析了相关电化学参数随时间的变化规律。采用扫描电镜及能谱仪分析了涂层腐蚀后的形貌及成分组成,阐释了电化学参数的演变规律。结果表明,盐雾试验中Zn-Al涂层的腐蚀由电化学反应控制逐渐转变为扩散控制,最后进入基体腐蚀阶段。 |
| 关 键 词： | Zn-Al涂层 腐蚀 电化学交流阻抗 |
Electrochemical behavior of Zn-Al coating in CASS |
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| LIU Yi,WEI Shi-cheng,WANG Yu-jiang,XU Bin-shi. Electrochemical behavior of Zn-Al coating in CASS[J]. Journal of Functional Materials, 2011, 0(Z2) | |
| Authors: | LIU Yi WEI Shi-cheng WANG Yu-jiang XU Bin-shi |
| Affiliation: | LIU Yi,WEI Shi-cheng,WANG Yu-jiang,XU Bin-shi (National Key Laboratory for Remanufacturing,Academy of Armored Forces Engineering,Beijing 100072,China) |
| Abstract: | The corrosion processes of Zn-Al coating in copper accelerated acetic acid salt spray test(CASS) was studied with electrochemical impedance spectroscopy(EIS),and equivalent circuits were proposed,which was based on the physicochemical process of the corrosion.The evolution features of the corresponding electrochemical parameters were analyzed.Scanning electron microscope and electron spectrometer were used to analyze the microstructure and compositions of Zn-Al coating after corrosion,which was used to expl... |
| Keywords: | Zn-Al coating corrosion electrochemical impedance spectrum |
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