海底输油管线钢在海水中的腐蚀及其抑制的电化学研究  

AN ELECTROCHEMICAL STUDY ON CORROSION AND INHIBITION OF PIPELINE STEEL IN SEA WATER

作　　者：曹殿珍[1] 高洪雷[1] 祝英剑[1] 杨怀玉[1] 曹家绶[1] 万方林[1] 陈家坚[1] 刘元永 刘日柱 

机构地区：[1]中国科学院金属腐蚀与防护研究所 [2]渤海石油公司海上工程公司

出　　处：《腐蚀科学与防护技术》1997年第3期240-243,共4页Corrosion Science and Protection Technology

摘　　要：用电化学极化曲线法研究海洋油田输油管钢在海水中的腐蚀电化学行为及其抑制措施．结果表明：在催化剂作用下除氧剂亚硫酸盐作为缓蚀剂的主要成分之一，可抑制电极腐蚀的阴极过程，使腐蚀速度由０．８７ｍｍ／ａ降低至０．The corrosion performance and inhibition method of pipeline steel in seawater were investigated by potentiodynamic method.One of the main reasons responsible for the corrosion of sea pipeline equipment is oxygen corrosion in sea water. Under the action of catalyst the deoxidizer sulphite may be adopled as the main inhibitor, which can intensively inhibit the cathodic corrosion process caused by cathodic depolariser of oxygen and thus the corrosion rate of the pipeline steel decreased from 0.87mm/a to less 0.06 mm/a.

关 键 词：海洋输油管钢 除氧剂 缓蚀剂 极化曲线 

分 类 号：TE980.5[石油与天然气工程—石油机械设备] TG174.42[金属学及工艺—金属表面处理]