Monitoring the degradation of nuclear waste packages induced by interior metallic corrosion using synchrotron X-ray tomography

Paraskevoulakos, C.; Stitt, C.A.; Hallam, K; Banos, A.; Olloqui, M. Leal; Jones, Christopher P; Griffiths, Gareth; Adamska, Anna; Jowsey, J.; Scott, Thomas Bligh

doi:10.1016/j.conbuildmat.2019.04.178

Cited by 12 publications

(5 citation statements)

References 32 publications

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“…The authors concluded that the medium-range structural changes were the most important when compared to experimentally observed data. Paraskevoulakos et al (2019) used synchrotron X-ray tomography as a methodology for observing the degradation progress of medium-level radioactive waste packages caused by internal metallic corrosion. The authors explored the correlation of medium-level nuclear waste drum degradation with the internal corrosion degree.…”

Section: Effect Of Materials Corrosionmentioning

confidence: 99%

“…The study discussed grout failure after ensuing grout encapsulation due to mechanical distortion within the steel liner. Paraskevoulakos et al (2019) indicated that the corrosion of the encapsulation of the metallic part was the main contributing factor leading to this distortion. Thus, the grout failure for the settlement of uranium corrosion resulted in a volume expansion.…”

Section: Effect Of Materials Corrosionmentioning

confidence: 99%

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Radioactive waste: A review

Deng

Zhang

Dong

et al. 2020

Water Environment Research

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The reviewed papers presented here provide a general overview of worldwide radioactive waste-related studies conducted in 2019. The current review includes studies related to safety assessments, decommission and decontamination of nuclear facilities, fusion facilities, and transportation. Further, the review highlights radioactive wastewater decontamination, management solutions for the final disposal of low-and highlevel radioactive wastes (LLRW and HLRW), interim storage and final disposal options for spent fuel (SF), and tritiated wastes, with a focus on environmental impacts due to the mobility of radionuclides in the ecosystem, water and soil along with other research progress made in the management of radioactive waste. © 2020 Water Environment Federation • Practitioner points • The release of radionuclides and their subsequent fate and transport in the environment poses public health concern and has stimulated recent research on the waste management techniques. • Seeking a safe and environmental-friendly solution is the current trend for existing and projected inventories of radioactive waste. • Significant progress in the field of geological disposal of radioactive waste has been made in the last two decades.

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Section: Effect Of Materials Corrosionmentioning

confidence: 99%

Section: Effect Of Materials Corrosionmentioning

confidence: 99%

Radioactive waste: A review

Deng

Zhang

Dong

et al. 2020

Water Environment Research

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“…With the use of equation (7), when the excitation frequency of the PZT transducer is equal to the in-plane or bending natural vibration frequency (i.e. ω pq or ω mn ) of the stainless steel plate, the system composed of the PZT transducer and the stainless steel plate will resonate, and the EMA Q s,eff of the stainless steel plate is maximum.…”

Section: Modeling Of the Quantitative Relationship Between The Extrac...mentioning

confidence: 99%

“…Conventional corrosion inspection techniques, such as eddy current [5], magnetic flux leakage [6], x-ray [7], and ultrasonic testing [8,9], have their limitations. These techniques are point-wise methods, which usually require point-by-point scanning the entire area to be tested, and sometimes require interrupting the operation of the structure.…”

Section: Introductionmentioning

confidence: 99%

Monitoring corrosion-induced thickness loss of stainless steel plates using the electromechanical impedance technique

Yang

Feng

2020

Meas. Sci. Technol.

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Stainless steel plates are widely used in steel structures. Corrosion damage of a stainless steel plate can induce the thickness and mass loss of the stainless steel plate. The corrosion-induced thickness loss (CITL) is one of the main reasons for the degradation of the stiffness and bearing capacity of the stainless steel plate, which endangers the safety of the structure and causes economic losses. Therefore, effective monitoring of the CITL of the stainless steel plate can help to ensure the safety of steel structures. In this study, a novel monitoring method for the CITL of the stainless steel plate based on the electromechanical impedance (EMI) technique is presented. The effective mechanical admittance (EMA) of a simply supported thin stainless steel plate under the excitation of a single surface-bonded piezoelectric transducer is derived theoretically; the resonance frequency shift ( Δ f ) of the bending vibration mode in the admittance signature is extracted as the CITL-sensitive feature to identify the CITL of the stainless steel plate. The quantitative relationship between Δ f and CITL, based on the EMA, is established theoretically for monitoring the CITL of the stainless steel plate. The effectiveness of the proposed method is verified by experiments. The experimental results demonstrate that the proposed method can sensitively identify, accurately quantify and predict the CITL of the stainless steel plate, and has excellent stability and reliability. This method can not only overcome the limitation of the existing statistics-based EMI methods that cannot quantify the CITL, but also compensate for the weakness of commonly-used non-destructive testing methods that cannot quantitatively predict CITL in an on-line monitoring manner. The proposed method provides an effective monitoring and tracking tool for the CITL of the stainless steel plate.

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“…However, this is impossible for IPT, because a metallic enclosure forms the Faraday cage in which electromagnetic waves are totally shielded. UPT, therefore, becomes a favorable solution in transferring energy via metallic structures [41,42,43]. For example, Kiziroglou et al presented an acoustic power delivery solution for monitoring pipeline conditions using wireless sensors [44].…”

Section: Introductionmentioning

confidence: 99%