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| 低合金钢实海腐蚀电化学阻抗谱研究 | |
| 引用本文： | 安闻迅,邓春龙,杜敏,吴建华.低合金钢实海腐蚀电化学阻抗谱研究[J].装备环境工程,2009,6(1):17-20. |
| 作者姓名： | 安闻迅 邓春龙 杜敏 吴建华 |
| 作者单位： | 1. 中国海洋大学化学,化工学院,山东,青岛,266100;中国船舶重工集团公司第七二五研究所海洋腐蚀与防护国防科技重点实验室,山东,青岛,266071 2. 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护国防科技重点实验室,山东,青岛,266071 3. 中国海洋大学化学,化工学院,山东,青岛,266100 |
| 摘 要： | 采用交流阻抗,结合线性极化,研究低合金钢实海全浸初期电化学阻抗谱行为。结果表明,低合金钢实海腐蚀最初1周是腐蚀最剧烈阶段；低合金钢实海腐蚀分为2个阶段,浸泡的第1周为第1阶段,阻抗值迅速减小,采用等效电路Rs（Cdl,Rt）拟合；浸泡1周之后,阻抗值变化缓慢,且呈现波动趋势,采用等效电路Rs（Cf（Rf（Cdl,Rt）））拟合。 |
| 关 键 词： | 交流阻抗谱 低合金钢 实海 瞬时腐蚀速度 线性极化 |
Study of Marine Corrosion of Low Alloy Steel with Electrochemical Impedance Spectroscopy |
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| AN Wen-xun,DENG Chun-long,DU Min,WU Jian-hua.Study of Marine Corrosion of Low Alloy Steel with Electrochemical Impedance Spectroscopy[J].Equipment Environmental Engineering,2009,6(1):17-20. | |
| Authors: | AN Wen-xun DENG Chun-long DU Min WU Jian-hua |
| Institution: | 1.Ocean University of China;Qingdao 266100;China;2.State Key Laboratory for Marine Corrosion and Protection;Luoyang Ship Material Research Institute;Qingdao 266071;China |
| Abstract: | The initial stage of electrochemical corrosion behavior of low-alloy steel in natural seawater was studied with electrochemical impedance spectroscopy(EIS) and linear polarization.The results showed that the first week was the most violent stage;the marine corrosion of low alloy steel has two stages;first week was the first stage in which the resistant was decreasing quickly;the fit result of EIS and equivalent circuit in this stage was Rs(CdlRt);while after the first week,the change of EIS was slowness and... |
| Keywords: | electrochemical impedance spectroscopy （EIS） low-alloy steel natural seawater instant corrosion rate linear polarization |
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