碳钢试片实海电化学检测与腐蚀规律的相关性  

In field electrochemical detections and corrosion behavior of carbon steel samples

作　　者：雒娅楠[1] 宋诗哲[1,2] 金威贤[3] 尹立辉[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072 [2]金属腐蚀与防护国家重点实验室,辽宁沈阳110016 [3]钢铁研究总院舟山海洋腐蚀研究所,浙江舟山316003

出　　处：《化工学报》2008年第11期2864-2869,共6页CIESC Journal

基　　金：国家自然科学基金重大项目(50499335)~~

摘　　要：By using polarization resistance measurement and electrochemical impedance spectroscopy(EIS),in field corrosion electrochemical detections of Q235 carbon steel and Q235 ultrafine grained steel immersed samples in Zhoushan Marine Corrosion Test Station were performed for 4 years.Dynamic corrosion data during exposure were obtained.Electrochemical detection results reflected not only the corrosion modalities and corrosion rates of the samples,but also the direct influence of marine environmental factors on the corrosion behavior.Seawater temperature was the major factor influencing the corrosion behaviors of carbon steels,and corrosion rates of these samples increased with increasing seawater temperature.The influence of seawater velocity and orientation of flow was less than that of temperature.By using polarization resistance measurement and electrochemical impedance spectroscopy（EIS）,in field corrosion electrochemical detections of Q235 carbon steel and Q235 ultrafine grained steel immersed samples in Zhoushan Marine Corrosion Test Station were performed for 4 years.Dynamic corrosion data during exposure were obtained.Electrochemical detection results reflected not only the corrosion modalities and corrosion rates of the samples,but also the direct influence of marine environmental factors on the corrosion behavior.Seawater temperature was the major factor influencing the corrosion behaviors of carbon steels,and corrosion rates of these samples increased with increasing seawater temperature.The influence of seawater velocity and orientation of flow was less than that of temperature.

关 键 词：海水腐蚀 碳钢 腐蚀电化学 腐蚀检测 极化阻力 

分 类 号：TG172.5[金属学及工艺—金属表面处理]