Inhibition of nuclear waste solutions containing multiple aggressive anions
The inhibition of localized corrosion of carbon steel in caustic, high-level radioactive waste solutions was studied using cyclic potentiodynamic polarization scans supplemented by partially immersed coupon tests. The electrochemical tests provided a rapid and accurate means of determining the relationship between the minimum inhibitor requirements and the concentration of the aggressive anions in this system. Nitrate, sulfate, chloride, and fluoride were identified as aggressive anions; however, no synergistic effects were observed between these anions. This observation may have important theoretical implications because it tends to contradict the behavior of aggressive anions as predicted by existing theories for localized corrosion.
- Research Organization:
- E.I. du Pont de Nemours and Co., Savanna River Lab., Aiken, SC (US)
- OSTI ID:
- 6900728
- Journal Information:
- Mater. Performance; (United States), Vol. 27:5
- Country of Publication:
- United States
- Language:
- English
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Inhibition of nuclear waste solutions containing multiple aggressive anions
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Related Subjects
36 MATERIALS SCIENCE
CARBON STEELS
CORROSION PROTECTION
CORROSION INHIBITORS
HIGH-LEVEL RADIOACTIVE WASTES
CORROSIVE EFFECTS
ANIONS
CORROSION RESISTANCE
ELECTROCHEMISTRY
TESTING
ALLOYS
CHARGED PARTICLES
CHEMISTRY
IONS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
STEELS
WASTES
052000* - Nuclear Fuels- Waste Management
360105 - Metals & Alloys- Corrosion & Erosion