Corrosion and failure processes in high-level waste tanks

Mahidhara, Rao K.; Elleman, T.S.; Murty, K. Linga

doi:10.2172/437662

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…4Some investigators believe that SCC of steel in alkaline media is due mainly to HE (Mahidhara 1992).…”

mentioning

confidence: 99%

Characterization of the corrosion behavior of the carbon steel liner in Hanford Site single-shell tanks

Anantatmula¹,

Schwenk²,

Danielson³

1994

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Six safety initiatives have been identified for accelerating the resolution of waste tank safety issues and closure of unreviewed safety questions. These initiatives are key drivers for building and maintaining the momentum to correct tank farm problems. Safety Initiative 5 is to reduce safety and environmental risk from tank leaks. Item d of Safety Initiative 5 is to complete corrosion studies of single-shell tanks to determine failure mechanisms and corrosion control options to minimize further degradation by June 1994. This report has been prepared to fulfill Safety Initiative 5, Item d. The corrosion mechanisms that apply to Hanford Site single-shell tanks are stress corrosion cracking, pitting/crevice corrosion, uniform corrosion, hydrogen embrittlement, and microbiologically influenced corrosion. Accurate determination of single-shell tank failure mechanisms involves laboratory experiments using synthetic wastes to simulate the wastes in the singleshell tanks coupled with the destructive and non-destructive examination of single-shell tanks to compare the laboratory data with the actual corrosion of the tanks. The corrosion data relevant to the single-shell tanks dates back three decades, when results were obtained from in-situ corrosion coupons in a few single-shell tanks. Since that time there have been intertank transfers, evaporation, and chemical alterations of the waste. These activities have changed the character and the present composition of the waste is not well characterized.

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“…4Some investigators believe that SCC of steel in alkaline media is due mainly to HE (Mahidhara 1992).…”

mentioning

confidence: 99%

Characterization of the corrosion behavior of the carbon steel liner in Hanford Site single-shell tanks

Anantatmula¹,

Schwenk²,

Danielson³

1994

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“…Like the Savannah River Site, one of the main missions of the Hanford site is to decontaminate the nuclear waste tanks that were fabricated in the 1940s [24]. Oxalic acid has been used as a cleaning agent to decontaminate the surface of the waste tanks fabricated from mild steel [43].…”

Section: Decontamination Of Waste Tanks On the Hanford Site Case Stumentioning

confidence: 99%

Real-Time Nanogravimetric Monitoring of Corrosion in Radioactive Environments

Tzagkaroulakis,

Boxall

2015

Meet. Abstr.

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Monitoring and understanding the mechanism of metal corrosion throughout the nuclear fuel cycle play a key role in the safe asset management of facilities. They also provide information essential for making an informed choice regarding the selection of decontamination methods for steel plant and equipment scheduled for decommissioning. Recent advances in Quartz Crystal Nanobalance (QCN) technology offer the means of monitoring corrosion in-situ, in radiologically harsh environments, in real time and with high sensitivity. Oxalic acid has been widely used in I would like to thank my director of studies, Professor Colin Boxall, for his advice, patience and positivity throughout the course of this research. I would like to thank my industrial supervisor Dr. Divyesh Trivedi of the National Nuclear Laboratory for the keen interest in the work. I wish to thank the Nuclear Decommissioning Authority for funding this project, the Lloyd's Register Foundation and the UTGARD laboratory for providing the research facilities. I would like to thank the UTGARD and the Lloyd's Register Foundation research groups (staff and students) for providing a friendly working environment. Finally, my utmost thanks go to my parents, my brother and my sister for their constant support and for always being there in good and not so good times. vi

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Evaluation of Nitrate and Nitrite Reduction Kinetics Related to Liquid-Air-Interface Corrosion

Gui

Cong

et al. 2014

Electrochimica Acta

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Corrosion and failure processes in high-level waste tanks

Cited by 4 publications

References 16 publications

Characterization of the corrosion behavior of the carbon steel liner in Hanford Site single-shell tanks

Characterization of the corrosion behavior of the carbon steel liner in Hanford Site single-shell tanks

Real-Time Nanogravimetric Monitoring of Corrosion in Radioactive Environments

Evaluation of Nitrate and Nitrite Reduction Kinetics Related to Liquid-Air-Interface Corrosion

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