Electrochemical Behavior of Carbon Steel in Fused Salts

CM Chen; GJ Theus

doi:10.1520/STP28041S

SYMPOSIA PAPER Published: 01 January 1981

STP28041S

Electrochemical Behavior of Carbon Steel in Fused Salts

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The polarization resistance method was used to assess the corrosion rate and to study the oxidation kinetics of carbon steel in a fused nitrate-sulfate-chloride salt mixture at 316°C (600°F) and in an alkali iron trisulfate salt at 677°C (1250°F). The same method was also applied to estimate the corrosion rate of carbon steel through the solidified frozen alkali iron trisulfate salt.

Equilibrium potential/pO²⁻ diagrams were constructed for iron, nitrate, and nitrate-reaction products to aid in the interpretation of corrosion data for the nitrate-rich salt and to determine the various chemical reactions causing the corrosion.

Author Information

Chen, CM

Babcock & Wilcox, Alliance, Ohio

Theus, GJ

Babcock & Wilcox, Alliance, Ohio

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Details

Developed by Committee: G01

Pages: 303–326

DOI: 10.1520/STP28041S

ISBN-EB: 978-0-8031-4795-9

ISBN-13: 978-0-8031-0704-5

Electrochemical Behavior of Carbon Steel in Fused Salts

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