Modeling the electrochemistry of the primary circuits of light water reactors
- Pennsylvania State Univ., State College, PA (United States). Center for Advanced Materials
- Takasago Research and Development Center, Hyogo (Japan). Chemical Lab.
To model the corrosion behaviors of the heat transport circuits of light water reactors, a mixed potential model (NTM) has been developed and applied to both boiling water reactors (BWRs) and pressurized water reactors (PWRs). Using the data generated by the GE/UKEA-Harwell radiolysis model, electrochemical potentials (ECPs) have been calculated for the heat transport circuits of eight BWRs operating under hydrogen water chemistry (HWC). By modeling the corrosion behaviors of these reactors, the effectiveness of HWC at limiting IGSCC and IASCC can be determined. For simulating PWR primary circuits, a chemical-radiolysis model (developed by the authors) was used to generate input parameters for the MPM. Corrosion potentials of Type 304 and 316 SSs in PWR primary environments were calculated using the NTM and were found to be in good agreement with the corrosion potentials measured in the laboratory for simulated PWR primary environments.
- DOE Contract Number:
- FG02-91ER45461
- OSTI ID:
- 80093
- Report Number(s):
- CONF-940222-; TRN: 95:016677
- Resource Relation:
- Conference: Corrosion 94: National Association of Corrosion Engineers (NACE) international annual conference, Baltimore, MD (United States), 28 Feb - 4 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of Corrosion/94 conference papers; PB: 5005 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BWR TYPE REACTORS
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
MATHEMATICAL MODELS
ELECTROCHEMISTRY
STAINLESS STEEL-304
CORROSION
STAINLESS STEEL-316
ELECTROCHEMICAL CORROSION
STRESS CORROSION
CRACK PROPAGATION
INTERGRANULAR CORROSION
CHEMICAL RADIATION EFFECTS
FEEDWATER
CHEMICAL COMPOSITION
EXPERIMENTAL DATA