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Electrochemical Corrosion Behavior of Ultra-Supercritical Unit Waterwall Tube Material in Simulated Solution of Oxygenated Treatment at Room Temperature

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Abstract:

The electrochemical corrosion behavior of ultra-supercritical unit waterwall tube material in simulated solution of oxygenated treatment (OT) with different concentration of Cl- and SO42- at room temperature was investigated by electrochemical impedance spectroscopy and Tafel slopes. The results showed that the polarization resistance Rp values decreased and corrosion current density (icorr) increased with increasing Cl-/ SO42- concentration in solution. Corrosion potentials (Ecorr) decreased with increasing Cl-/ SO42- concentration in solution.

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Periodical:

Applied Mechanics and Materials (Volume 328)

Pages:

882-885

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.328.882

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Online since:

June 2013

Authors:

Cun Ren Ma, Hai Wei Lu, Guo Hua Lu, Wei Su, Tian Sheng Chen, Zhi Ping Zhu

Keywords:

Corrosion Behavior, EIS, Tube Material, Ultra-Supercritical Unit

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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