Effect of anodic dissolution and passivation on X80 steel in NaHCO_(3) solution

作     者：Lai-Shun Yang Chao Yang Lai-Shun Yang;Chao Yang

作者机构：College of Civil Engineering and ArchitectureShandong University of Science and TechnologyQingdao 266590ShandongChina Technology Inspection Center of Shengli OilfieldSINOPECDongying 257000ShandongChina China University of Petroleum(East China)Qingdao 266580ShandongChina 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2021年第18卷第1期

页      面：285-294页

核心收录：

学科分类：080503[工学-材料加工工程] 0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 0707[理学-海洋科学] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

主　　题：Anodic current Passivation X80 steel Fe3O4 Near-neutral solution 

摘      要：The effects of extreme stray current on the anodic dissolution and passivation of X80 steel in NaHCO3 solution were investigated using measurements of polarization curves and EIS,AFM and SEM *** the interference of anodic current(i=0~200 A/m2),main constituents of corrosion products of X80 steel were FeO(OH)and Fe3 O4.A double-layer film formed at i=00 A/m2,in which FeOOH was in outer and Fe3 O4 lied in *** formation mechanism of Fe3 O4 was confirmed and described by the electrochemical reaction in various regions on anodic potentiodynamic polarization curve.