Paper Title:
Effects of Temperature on Corrosion Behavior of X70 Steel in Halons
  Abstract

The corrosion behavior of X70 pipeline steel in 0.5% NaC1 solution in different temperature of 25°C、35°C and 55°C was studied by dynamic potential polarization curve and electrochemical impedance spectroscopy(EIS)method. The corrosion topography of X70 pipeline steel in normal temperature and 30°C was also compared in immersion corrosion test after 25 days. The results show that when the temperature rises, the corrosion current density Icorr increases, the linear polarization resistance reduces, cathode polarization curve right shift, caused corrosion rate increases which primarily by the increasing the transmission of reactant in the cathode reaction. Pitting corrosion developed after 25 days immersion corrosion in 30°C solution which proved the promoter action of temperature to pit corrosion, and which is agreed with the electrochemical corrosion test results.

  Info
Periodical
Advanced Materials Research (Volumes 311-313)
Chapter
Steel and Iron
Edited by
Zhongning Guo
Pages
996-1000
DOI
10.4028/www.scientific.net/AMR.311-313.996
Citation
J. Xu, J. W. Yang, J. P. Cao, C. Chen, "Effects of Temperature on Corrosion Behavior of X70 Steel in Halons", Advanced Materials Research, Vols. 311-313, pp. 996-1000, 2011
Online since
August 2011
Export
Price
$32.00
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