Potential-pH diagrams for iron in supercritical water
- Pennsylvania State Univ., University Park, PA (United States). Center for Advanced Materials
Potential-pH diagrams for the iron-water system were extended into the supercritical temperature range using thermodynamic data generated by the quasi-thermodynamic model of Helgeson, et al. For subcritical temperatures (T < 374 C), the diagrams agreed well with those available in the literature. The domain of thermodynamic immunity of iron decreased significantly with increasing T, particularly > 300 C. The domain of possible protection of iron by formation of a thermodynamically stable passive oxide layer shifted to lower pH values with increasing T.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 532996
- Journal Information:
- Corrosion, Journal Name: Corrosion Journal Issue: 8 Vol. 53; ISSN 0010-9312; ISSN CORRAK
- Country of Publication:
- United States
- Language:
- English
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