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Metals and Materials International

, Volume 15, Issue 4, pp 623–629 | Cite as

Effects of copper on the corrosion properties of low-alloy steel in an acid-chloride environment

  • Young-Wook Jang
  • Ji-Hyun Hong
  • Jung-Gu KimEmail author
Article

Abstract

The influence of Cu addition on the corrosion resistance of low-alloy steel in an acid-chloride solution was investigated by electrochemical methods, such as potentiodynamic polarization tests and an electrochemical impedance spectroscopy (EIS). The XPS analysis of the corroded surfaces indicated the formation of protective Cu2O and Cu(OH)2 layers on the surface. The formation of Cu products on the surface reduced the uniform corrosion rate of the steel, but promoted localized corrosion due to the galvanic interaction between the covered areas of copper oxide/hydroxide and the uncovered areas on the surface of steel.

Keywords

low-alloy steel copper acid-chloride solution localized corrosion 

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Copyright information

© The Korean Institute of Metals and Materials and Springer Netherlands 2009

Authors and Affiliations

  1. 1.Department of Advanced Materials EngineeringSungkyunkwan UniversityGyeonggiKorea

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