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

作　　者：余晓毅 徐云泽 朱烨森[3] 常炜 黄一[3] YU Xiaoyi;XU Yunze;ZHU Yesen;CHANG Wei;HUANG Yi(Beijing Research Center,China National Offshore Oil Corporation,Beijing 100027,China;School of Civil Engineering,Dalian University of Technology,Dalian 116024,China;School of Naval Architecture and Ocean Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]中海石油(中国)有限公司北京研究中心,北京100027 [2]大连理工大学土木工程学院,大连116024 [3]大连理工大学船舶工程学院,大连116024

出　　处：《腐蚀与防护》2021年第10期13-18,22,共7页Corrosion & Protection

基　　金：国家工信部高技术船舶科研项目(MC-202030-H04)。

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。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.

关 键 词：多电极 电阻法 水线腐蚀 介质流动 宏电池腐蚀 

分 类 号：TG174[金属学及工艺—金属表面处理]