Electrochemical corrosion measurements in high temperature boiler water

Victor N. Balashov, Mark Valentinovich Fedkin, Serguei Lvov, James A. Mathews

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The electrochemical corrosion measurements at temperatures above 300 °C present a specific challenge due to limitations on material stability in sub- and super-critical hydrothermal environments, the very low concentrations of ionic species in the typical boiler water and the sluggish corrosion process. The actual carbon steel corrosion rates, after formation of protective oxide layer, are as low as few microns per year. The traditional mass loss corrosion studies would require a substantial experimental time to measure such a low rate process. We developed an approach using a number of electrochemical techniques that are able to provide in-situ information on the instantaneous corrosion rates at any stage of the process. In this paper, the experimental corrosion data obtained by electrochemical impedance spectroscopy, DC polarization, and cyclic voltammetry at temperatures up to 350 °C are reported to illustrate the corrosion behavior of the carbon steel in de-oxygenated all-volatile treatment (AVT) boiler solutions with different chloride contents (up to 3000 ppb).

Original languageEnglish (US)
Title of host publication17th International Corrosion Congress 2008
Subtitle of host publicationCorrosion Control in the Service of Society
Pages3158-3166
Number of pages9
StatePublished - Dec 1 2008
Event17th International Corrosion Congress 2008: Corrosion Control in the Service of Society - Las Vegas, NV, United States
Duration: Oct 6 2008Oct 10 2008

Publication series

Name17th International Corrosion Congress 2008: Corrosion Control in the Service of Society
Volume5

Other

Other17th International Corrosion Congress 2008: Corrosion Control in the Service of Society
CountryUnited States
CityLas Vegas, NV
Period10/6/0810/10/08

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All Science Journal Classification (ASJC) codes

  • Colloid and Surface Chemistry
  • Surfaces, Coatings and Films

Cite this

Balashov, V. N., Fedkin, M. V., Lvov, S., & Mathews, J. A. (2008). Electrochemical corrosion measurements in high temperature boiler water. In 17th International Corrosion Congress 2008: Corrosion Control in the Service of Society (pp. 3158-3166). (17th International Corrosion Congress 2008: Corrosion Control in the Service of Society; Vol. 5).