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16MnR管线钢在近中性溶液中的电化学行为
引用本文:方丙炎,韩恩厚,朱自勇,王俭秋,柯伟.16MnR管线钢在近中性溶液中的电化学行为[J].腐蚀科学与防护技术,2001,13(6):318-320.
作者姓名:方丙炎  韩恩厚  朱自勇  王俭秋  柯伟
作者单位:中国科学院金属研究所
基金项目:中国科学院“百人计划”,国家重点基础研究发展规划项目专项经费联合资助 (G19990 65 0 )
摘    要:研究了16MnR管线钢在0.01N Na2CO3+0.01N NaHC O3近中性pH值溶液中的电化学行为,结果表明当扫描速度分别为2 mV/s和0.5 mV/s时有3 个腐蚀电位;分别位于活化区、钝化区和活化-钝化过渡区.并且16MnR在此体系中处于一 个极不稳定的状态.金相显微镜观察其组织为铁素体和珠光体相间排列.

关 键 词:16MnR  极化曲线  近中性pH值溶液  腐蚀电位
文章编号:1002-6495(2001)06-0318-03
修稿时间:2000年11月10

ELECTROCHEMICAL BEHAVIOR OF 16MnR PIPELINE STEEL IN SOLUTION OF 0.1N Na2CO3 + 0.01N NaHCO3
FANG Bingyan,HAN Enhou,ZHU Ziyong,WANG Jianqiu,KE Wei.ELECTROCHEMICAL BEHAVIOR OF 16MnR PIPELINE STEEL IN SOLUTION OF 0.1N Na2CO3 + 0.01N NaHCO3[J].Corrosion Science and Protection Technology,2001,13(6):318-320.
Authors:FANG Bingyan  HAN Enhou  ZHU Ziyong  WANG Jianqiu  KE Wei
Abstract:This paper mainly studied the electrochemical behavior of 16MnR pipeline steel in a solution of 0.01N Na 2CO 3+0.01N NaHCO 3 with near neutral pH.It was indicated that there were three corrosion potentials when scanning rate were 2 mV/s and 0.5 mV/s respectively for 16MnR in the solution of 0.01N Na 2CO 3+0.01N NaHCO 3.Among them one was in the active range,the second was in the passive range,and the third lays the active-passive range.Conclusively,16MnR was unstable in 0.01N Na 2CO 3+0.01N NaHCO 3.Moreover,the Metallograph showed that the microstructure of the steel was ferrite colony and pearlier colony alternately.
Keywords:MnR  polarization curve  near neutral pH solution  corrosion potential  
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