Design of an electrochemical noise based corrosion monitoring probe for high level nuclear waste storage tanks
Conference
·
OSTI ID:352577
- Lockheed Martin Hanford Co., Richland, WA (United States)
High-level nuclear wastes at the Hanford Site are stored underground in carbon steel double-shell end single-shell tanks. The installation of a three-channel prototype corrosion monitoring system into double-shell tank 241-AZ-l 01 was completed in August 1996. A fully operational eight-channel system based on the design and operation of the prototype was installed into double-shell tank 241-AN-107 in September 1997. The 241-AN-107 system monitors fluctuations in corrosion current and potential (electrochemical noise) occurring on eight electrode arrays immersed in the waste liquid and in the vapor space above the waste. The electrodes are designed to detect the onset of pitting and stress corrosion cracking should tank conditions change to allow these phenomena to occur. This paper focuses on the design of the 241-AN-107 corrosion probe.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 352577
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
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