基于电阻-多电极联合测量的水线腐蚀行为
Water-line Corrosion Behavior Measured by Electrical Resistance Method and Multi-electrode Technique
摘 要
开发了一种新型微电阻测量与耦合阵列多电极技术相结合的腐蚀监测传感器系统。并采用该传感器，分别研究了静止和流动环境中的水线腐蚀行为。结果表明：在静止3.5% NaCl溶液中，主要的阳极区域位于传感器底部，这表明此时水线腐蚀由氧浓差控制。而在流动3.5% NaCl溶液中，主要的阳极区域上移至接近水线位置，底部区域成为阴极，即介质流动会影响水线腐蚀。且在两种环境中，宏电池腐蚀都是影响水线腐蚀的主要因素。
电阻法
水线腐蚀
介质流动
宏电池腐蚀
multi-electrode sensor
electrical resistance method
water-line corrosion
medium flow
macro cell corrosion
Abstract
A new sensor system was developed based on an integrated multi-electrode technique in conjunction with an electrical resistance (ER) method. And using this sensor, the water-line corrosion behavior in static and flowing environments was studied respectively. The results showed that in a static 3.5% NaCl solution, the main anodic area was located at the bottom of the sensor, and the water-line corrosion was controlled by the oxygen differential cell. In flowing 3.5% NaCl solution, the main anodic area moved up to a position close to the water-line, and the bottom area transferred to a cathodic area, that is, the flow of the medium would affect the water-line corrosion. In both test environments, macro cell corrosion was the main factor affecting water-line corrosion.
中图分类号 TG174 DOI 10.11973/fsyfh-202110003
所属栏目 试验研究
基金项目 国家工信部高技术船舶科研项目（MC-202030-H04）
收稿日期 2020/12/15
修改稿日期
网络出版日期
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引用该论文: YU Xiaoyi,XU Yunze,ZHU Yesen,CHANG Wei,HUANG Yi. Water-line Corrosion Behavior Measured by Electrical Resistance Method and Multi-electrode Technique[J]. Corrosion & Protection, 2021, 42(10): 13
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参考文献
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【4】胡杰珍, 程学群, 李晓刚, 等. 阵列电极(WBE)联合线性极化技术(LP)研究海水-大气界面区碳钢的腐蚀行为[J]. 腐蚀与防护, 2015, 36(11):1014-1020.
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【6】丁健, 张伟, 王佳, 等. WBE技术研究水线区涂层劣化和涂层下金属腐蚀[J]. 中国腐蚀与防护学报, 2016, 36(5):463-470.
【7】JEFFREY R, MELCHERS R E. Corrosion of vertical mild steel strips in seawater[J]. Corrosion Science, 2009, 51(10):2291-2297.
【8】MELCHERS R E, JEFFREY R J. Accelerated low water corrosion of steel piling in harbours[J]. Corrosion Engineering, Science and Technology, 2013, 48(7):496-505.
【9】MELCHERS R E, JEFFREY R. Corrosion of long vertical steel strips in the marine tidal zone and implications for ALWC[J]. Corrosion Science, 2012, 65:26-36.
【10】TAN Y J. Sensing electrode inhomogeneity and electrochemical heterogeneity using an electrochemically integrated multielectrode array[J]. Journal of the Electrochemical Society, 2009, 156(6):C195.
【11】ZHANG M, GE H H, WANG X J, et al. Research into the corrosion behavior of carbon steel in simulated reverse osmosis product water and seawater using a wire beam electrode[J]. Anti-Corrosion Methods and Materials, 2015, 62(3):176-181.
【12】LIU Z J, WANG W, WANG J, et al. Study of corrosion behavior of carbon steel under seawater film using the wire beam electrode method[J]. Corrosion Science, 2014, 80:523-527.
【13】WU J J, WANG P, GAO J Y, et al. Comparison of water-line corrosion processes in natural and artificial seawater:The role of microbes[J]. Electrochemistry Communications, 2017, 80:9-15.
【14】邢佩, 卢琳, 李晓刚. 丝束电极技术研究海洋高强用E690钢水线腐蚀[J]. 腐蚀与防护, 2015(增2):1-8.
【15】陈亚林, 张伟, 王伟, 等. WBE技术研究水线区Q235碳钢腐蚀[J]. 中国腐蚀与防护学报, 2014, 34(5):451-458.
【16】XU Y Z, LI K Q, LIU L, et al. Experimental study on rebar corrosion using the galvanic sensor combined with the electronic resistance technique[J]. Sensors, 2016, 16(9):1451.
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