高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1115.

• 论文 • 上一篇    下一篇

Cl-对APIP105钢在含CO2溶液中的电化学腐蚀行为的影响

张学元, 余刚, 王凤平, 杜元龙   

  1. 金属腐蚀与防护国家重点实验室, 中国科学院金属腐蚀与防护研究所, 沈阳 110015
  • 收稿日期:1998-07-17 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 张学元,男,29岁,博士研究生.
  • 作者简介:张学元,男,29岁,博士研究生.
  • 基金资助:

    中国科学院九五重大项目;国家自然科学基金(批准号:59871051)资助课题

Influence of Cl-on Corrosion Behavior of APIP105 SteeLIn the CO2Saturated Solution

ZHANG Xue-Yuan, YU Gang, WANG Feng-Ping, DU Yuan-Long   

  1. State Key Laboratory for Corrosion and Protection, Institute of Corrosion and Protection of Metals, the Chinese Academy of Sciences, Shenyang, 110015
  • Received:1998-07-17 Online:1999-07-24 Published:1999-07-24

PDF (PC)

摘要： 用电化学阻抗谱(EIS)及极化测量,研究了在含CO2的溶液中Cl-对APIP105钢的电化学腐蚀行为的影响.结果表明,Cl-促进了钢铁的阳极溶解,其电化学反应级数为0.7.Cl-不参与钢铁的阴极反应,在含Cl-的饱和CO2溶液中,阴极反应主要为H2CO3的去极化反应.

关键词: Cl-, CO2, 腐蚀机理, APIP105钢

Abstract: Corrosion mechanism for APIP105 steeLIn the CO2saturated solution with Cl-was studied by using electrochemicaLImpedance spectroscopy(EIS) and polarization measure-ments. The results showed that Cl-promoted the dissolution of iron, and the order of the electrochemical reaction was 0.7, Cl-did not take part in the cathodic reaction, the main ca-thodic reaction was controlled by the depolarization reaction of H2CO3.

Key words: Cl-, CO2, Corrosion mechanism, APIP105 steel

中图分类号: 

TrendMD: