Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (7): 1115.

• Articles • Previous Articles     Next Articles

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

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

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