| Q235钢在模拟自然环境下失效行为的电化学研究 |
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| 引用本文： | 郑利云,曹发和,刘文娟,陈安娜,廖晓宁,张鉴清.Q235钢在模拟自然环境下失效行为的电化学研究[J].装备环境工程,2011,8(4):8-15. |
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| 作者姓名： | 郑利云 曹发和 刘文娟 陈安娜 廖晓宁 张鉴清 |
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| 作者单位： | 1. 浙江大学,杭州,310027
2. 浙江大学,杭州310027;中国科学院金属研究所,沈阳110016 |
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| 基金项目： | 国家自然科学基金(50801056); 浙江省自然科学基金(Y4110074); 国家科技基础条件平台项目(2005DKA10400-Z20) |
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| 摘 要： | 采用电化学阻抗谱(EIS)和阴极极化曲线研究了Q235钢在薄液膜条件下的大气腐蚀过程,探讨了液膜厚度、Cl-和腐蚀产物对Q235钢失效过程的影响.结果表明液膜厚度会影响O2的扩散过程,并进一步影响腐蚀速率；C1～环境下,Q235钢腐蚀产物分成2层,外层为多孔疏松层,内层主要为α-FeOOH和γ -FeOOH组成的锈层,...
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| 关 键 词： | 薄液膜 EIS 大气腐蚀 阴极极化曲线 锈层 |
| 收稿时间： | 2011/2/10 0:00:00 |
| 修稿时间： | 2011/8/15 0:00:00 |
Corrosion Behavior of Q235 in Simulated Natural Environment by Electrochemical Technology |
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| ZHENG Li-yun,CAO Fa-he,LIU Wen-juan,CHEN An-n,LIAO Xiao-ning and ZHANG Jian-qing.Corrosion Behavior of Q235 in Simulated Natural Environment by Electrochemical Technology[J].Equipment Environmental Engineering,2011,8(4):8-15. |
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| Authors: | ZHENG Li-yun CAO Fa-he LIU Wen-juan CHEN An-n LIAO Xiao-ning and ZHANG Jian-qing |
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| Institution: | ZHENG Li-yun1,CAO Fa-he1,LIU Wen-juan1,CHEN An-na1,LIAO Xiao-ning1,ZHANG Jian-qing1,2 (1.Zhejiang University,Hangzhou 310027,China,2.Institute of Metal Research of the Chinese Academy of Sciences,Shenyang 110016,China) |
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| Abstract: | The atmospheric corrosion process of Q235 steel under thin electrolyte layer(TEL) was investigated by electrochemical impedance spectroscopy(EIS) and cathodic polarization.The influence of the thickness of TEL,chloride ions,and corrosion production on the degradation process of Q235 steel was discussed.The results indicated that the thickness of TEL affect the diffusion process of O2,which further influence the corrosion rate.The effect of TEL to the two-layer rust under Cl-containing environment was analyz... |
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| Keywords: | thin electrolyte layer EIS atmospheric corrosion cathodic polarization curve rust layer |
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