| 混凝土中钢筋点蚀的电化学噪声特性研究 |
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| 引用本文： | 乔国富,欧进萍. 混凝土中钢筋点蚀的电化学噪声特性研究[J]. 腐蚀科学与防护技术, 2009, 21(4): 365-369 |
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| 作者姓名： | 乔国富 欧进萍 |
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| 作者单位： | 1. 哈尔滨工业大学土木工程学院,哈尔滨,150090
2. 大连理工大学土木水利学院,大连,116023 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 采用Sym4小波分析氯离子环境下砂浆中碳钢电化学噪声的电流波动及电压波动信号,通过提取信号的小波能量,得到了信号的能量分布曲线.结果表明,电化学噪声的小波能量是点蚀监测信号解析的重要特征参数,根据能量分布曲线的变化可以判定点蚀的发生.
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| 关 键 词： | 腐蚀监测 点蚀 电化学噪声 小波分析 |
| 收稿时间： | 2007-08-09 |
| 修稿时间： | 2008-01-21 |
PITTING CORROSION CHARACTERS OF REINFORCING STEEL IN CEMENT MORTAR |
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| QIAO Guo-Fu,OU Jin-ping. PITTING CORROSION CHARACTERS OF REINFORCING STEEL IN CEMENT MORTAR[J]. Corrosion Science and Protection Technology, 2009, 21(4): 365-369 |
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| Authors: | QIAO Guo-Fu OU Jin-ping |
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| Affiliation: | 1School of Civil Engineering;Harbin Institute of Technology;Harbin 150090; 2School of Civil and Hydraulic Engineering;Dalian University of Technology;Dalian 116023 |
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| Abstract: | The pitting corrosion behavior of reinforcing steel in cement mortar has been studied by electrochemical noise analysis(ENA)method.The wavelet Sym4 has been applied to analyze the EN data of reinforcing steel in mortar.The energy distribution plot(EDP)was plotted.The experimental results demonstrated that the change of EDP during the corrosion process could qualitatively reveal the useful information of corrosion mechanism.According to EDP,the occurance of pitting corrosion can be identified qualitativly. |
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| Keywords: | corrosion monitoring pitting corrosion electrochemical noise wavelet analysis |
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