In October of 2000 work was started on a project to develop a temporary electrochemical noise (EN) based corrosion monitoring system for Bethel Valley Evaporator Storage Tank (BVEST) W-23 at Oak Ridge National Laboratory (ORNL). The project was undertaken to assess the corrosivity of the waste in the tank and to assist in the overall development program for nuclear waste tank corrosion monitoring at the Hanford Site and other DOE facilities. Prior to the fabrication and deployment of the Tank W-23 system, laboratory testing was performed at ORNL to characterize the behavior of 304L (UNS S30403) stainless steel in simulated Tank W-23 waste solutions. Following the laboratory work a system was deployed in Tank W-23 in June of 2001. Data collection was terminated in June of 2002. Both laboratory data from the development effort and field data from system operation in Tank W-23 are presented herein.

Subject
Pits, Electric current, Laboratory data, Corrosion data, Corrosion probes, Pitting, Corrosion coupons, Corrosion monitoring, Wastes, Electrodes, Stress corrosion cracking, Electrode potential, Uniform corrosion
Keywords:
electrochemical noise, corrosion monitoring, nuclear waste tank
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2004
Association for Materials Protection and Performance (AMPP)
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