Experimental system for electrochemical studies of aqueous corrosion at temperatures above 300°C

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11 Citations (Scopus)

Abstract

An experimental high temperature electrochemical system was designed to measure electrochemical corrosion rates in dilute electrolyte solutions. The system was tested at temperatures up to 360°C and pressures up to 26 MPa. The ion concentrations in the aqueous boiler solutions are typically low, which makes corrosion rates relatively low and difficult to quantify using the traditional mass loss and metallography techniques. The electrochemical system designed with an annular-duct flow-through two-electrode assembly was proved to be efficient for in situ corrosion studies. The dc polarization and electrochemical impedance spectroscopy methods were found to be the most applicable techniques to measure the corrosion current in the high temperature/low density subcritical environments.

Original languageEnglish (US)
JournalJournal of the Electrochemical Society
Volume156
Issue number7
DOIs
StatePublished - Jun 1 2009

Fingerprint

corrosion
Corrosion
Corrosion rate
annular ducts
Annular ducts
electrochemical corrosion
metallography
Electrochemical corrosion
Metallography
boilers
ion concentration
Electrochemical impedance spectroscopy
Temperature
Electrolytes
temperature
Boilers
assembly
electrolytes
impedance
Ions

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

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abstract = "An experimental high temperature electrochemical system was designed to measure electrochemical corrosion rates in dilute electrolyte solutions. The system was tested at temperatures up to 360°C and pressures up to 26 MPa. The ion concentrations in the aqueous boiler solutions are typically low, which makes corrosion rates relatively low and difficult to quantify using the traditional mass loss and metallography techniques. The electrochemical system designed with an annular-duct flow-through two-electrode assembly was proved to be efficient for in situ corrosion studies. The dc polarization and electrochemical impedance spectroscopy methods were found to be the most applicable techniques to measure the corrosion current in the high temperature/low density subcritical environments.",
author = "Balashov, {Victor N.} and Fedkin, {Mark Valentinovich} and Serguei Lvov",
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AU - Fedkin, Mark Valentinovich

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AB - An experimental high temperature electrochemical system was designed to measure electrochemical corrosion rates in dilute electrolyte solutions. The system was tested at temperatures up to 360°C and pressures up to 26 MPa. The ion concentrations in the aqueous boiler solutions are typically low, which makes corrosion rates relatively low and difficult to quantify using the traditional mass loss and metallography techniques. The electrochemical system designed with an annular-duct flow-through two-electrode assembly was proved to be efficient for in situ corrosion studies. The dc polarization and electrochemical impedance spectroscopy methods were found to be the most applicable techniques to measure the corrosion current in the high temperature/low density subcritical environments.

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