Pourbaix diagrams for the iron-water system extended to high-subcritical and low-supercritical conditions

被引：64

作者：

Cook, William G. ^{[1
]}

Olive, Robert P. ^{[1
]}

机构：

[1] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

来源：

CORROSION SCIENCE | 2012年 / 55卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Iron; Electrochemical calculation; High temperature corrosion; Oxidation; Pourbaix diagram; THERMODYNAMIC PROPERTIES; HIGH-PRESSURES; TEMPERATURES; SOLUBILITY; MAGNETITE; CORROSION; CONSTANTS; HEMATITE;

D O I：

10.1016/j.corsci.2011.10.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The supercritical water-cooled reactor (SCWR) is a Generation IV reactor concept that will operate at temperatures and pressures above water's thermodynamic critical point. Pourbaix diagrams for the iron-water system at temperatures slightly below and above the critical point at 25 MPa have been constructed to aid the evaluation and development of potential construction materials. High temperature data extrapolation was performed using a revised Helgeson-Kirkham-Flowers model and fit to data on magnetite and hematite solubility in high-temperature water. A low-concentration diagram at 350 degrees C reveals the importance of water chemistry control to avoid transitioning to an active corrosion region. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：326 / 331

页数：6

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