Shadow corrosion: Experiments and modeling

Barbéris, Pierre; Skocic, Milan; Kaczorowski, D.; Perche, Delphine; Wouters, Y.; Nowotka, K.

doi:10.1016/j.jnucmat.2019.06.001

Cited by 11 publications

(2 citation statements)

References 14 publications

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“…The kinetic dependences of the change in the thickness of the oxide film on the time of corrosion of Zr + 1% Nb alloy pipes in solutions of different composition during 250 days of testing (6000 minutes) are given in Table 2. According to the values obtained, the highest values were obtained in an alkaline medium of pH = 10.0, a fact confirmed in other sources of information [36,37].…”

Section: Fig 1 Schematic Of a Corrosion Galvanic Cell Zr -Fesupporting

confidence: 77%

Development of a Corrosion Model Ofthermal Elenents of Nuclear Power Plants

Hapon,

Kustov,

Mykhailovska

et al. 2023

MSF

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Nuclear power plants (NPPs) result in accumulation of a significant amount of radioactive products during the process of their storage and the presence of a potential release of radioactive products, in the case of an accident that is a source of potential hazard and risk of radiation impact on the personnel, population and environment in general. The paper shows the microgalvanic corrosion element formed on the inner wall of fuel rods made of Zr + 1%Nb alloy and pellets made of uranium oxides, as well as the outer galvanic element of fuel rods and structural materials of the reactor made of steel of different grades. The hazards caused by corrosion damage and release of hazardous radioactive substances from the reactor based operating area are analyzed. The possibility of predicting the rate of corrosion damage using a mathematical model on the thermodynamic approach is determined and established.

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Section: Fig 1 Schematic Of a Corrosion Galvanic Cell Zr -Fesupporting

confidence: 77%

Development of a Corrosion Model Ofthermal Elenents of Nuclear Power Plants

Hapon,

Kustov,

Mykhailovska

et al. 2023

MSF

View full text Add to dashboard Cite

show abstract

“…To this date, one of the main issues facing Ukrainian NPP is corrosion accumulation in the radioactive products first circuit path, high radiation exposure of the personnel, formation and accumulation of a significant amount of liquid radioactive waste [11,12,13].…”

Section: Fig 2 Fuel Element Structurementioning

confidence: 99%

Multistage Corrosion of Fuel Element Materials in Nuclear Reactors

Hapon

Kustov

Chyrkina

et al. 2022

SSP

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One of the factors limiting the operation time of nuclear reactor is corrosive wear of the reactor core structural materials and fuel element cladding due to continuous action of water coolant. Thus, for VVER (water-water energetic reactor) type reactors, local galvanic corrosion, which occurs between the surface of fuel element cladding made of zirconium alloy and various grade steel parts of other structural elements is peculiar. A short-circuited galvanic cell formed on the inner wall of Zr + 1% Nb alloy fuel elements is shown. Changes in oxide films thicknesses depending on the time at different water medium acidity are analyzed. A generalized model demonstrating that dissimilar metals in the reactor core (zirconium alloy and steel) form a short-circuited galvanic cell, resulting from which an increase in local corrosion of zirconium alloy occurs is presented.

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Corrosion Characteristics of Candidate Alloys

Guo

2021

Corrosion Characteristics, Mechanisms and Control Methods of Candidate Alloys in Sub- And Supercritical Water

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Shadow corrosion: Experiments and modeling

Cited by 11 publications

References 14 publications

Development of a Corrosion Model Ofthermal Elenents of Nuclear Power Plants

Development of a Corrosion Model Ofthermal Elenents of Nuclear Power Plants

Multistage Corrosion of Fuel Element Materials in Nuclear Reactors

Corrosion Characteristics of Candidate Alloys

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