磁场对石油污水管线钢的腐蚀行为研究  

Study of corrosion behavior of magnetic field on the steel of oil sewage pipeline

作　　者：谢发勤[1] 吴向清[1] 白真权[2] 徐楠[1] 

机构地区：[1]西北工业大学航空学院 [2]中国石油天然气集团公司管材研究所

出　　处：《石油机械》2006年第12期1-3,77,共3页China Petroleum Machinery

基　　金：中国石油天然气集团公司石油管力学和环境行为重点实验室开放项目"磁场在油田污水管线钢防腐蚀机理的研究"资助;项目编号:ZYT-0402

摘　　要：采用第3代永磁材料NdFeB(钕铁硼),研究了在施加永磁场条件下,模拟油田污水介质对20号钢的腐蚀过程,采用增重法、X射线衍射以及电化学方法对磁场作用下石油污水管线钢的腐蚀行为进行分析和评价。研究结果表明,磁场对Fe3O4的形成、自腐蚀电位正移幅度有促进作用,磁场对腐蚀产物的增重率影响较大,但它们与磁感应强度之间存在着极值关系。The corrosion process of 20 steel has been studied in the oil sewage environment under the condition of permanent magnetic field by using the third generation of permanent magnet material NdFeB.And the corrosion behavior of the steel of oil sewage pipeline in magnetic field has been analyzed and evaluated by the methods of increasing weight,X-ray diffraction and electrochemistry.The results show that the magnetic field can promote the formation of Fe3O4 and the shuffle of self corrosion potential,and moreover,it can greatly affect the weighting rate of corrosion product.However,they have an extremum relationship with magnetic induction intensity.

关 键 词：NDFEB 20号钢 腐蚀 磁场 极化曲线 

分 类 号：TG174.42[金属学及工艺—金属表面处理]