The competition between corrosion and oxidation on a steel surface immersed in lead alloys with controlled oxygen leads to different oxide-layer characteristics as compared with those formed in gases. The presence of a liquid metal [liquid lead or lead-bismuth eutectic (LBE)] can either enhance or reduce the oxidation rate, resulting in different oxide growth rates and microstructures. Based on analysis of experimental results in static LBE/lead and gases under the same experimental conditions, we predict the oxide-layer structure and thickness as functions of immersion time and analyze the factors that play important roles in the oxidation process in LBE/lead. It is shown that there is a significant difference between the oxide formed in liquid lead alloys and in gases, including the oxide-layer structure. To generate a stable protective oxide layer on steel surfaces in LBE, the long-term corrosion effect, the supply of oxygen, and the penetration of the liquid metal into the structural materials or oxide layers must be taken into account.
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14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4244-4
PROCEEDINGS PAPER
Comparisons of the Oxide Layer Between Static Liquid-Bismuth-Eutectic and Gas Environments
Jinsuo Zhang,
Jinsuo Zhang
Los Alamos National Laboratory, Los Alamos, NM
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Ning Li
Ning Li
Los Alamos National Laboratory, Los Alamos, NM
Search for other works by this author on:
Jinsuo Zhang
Los Alamos National Laboratory, Los Alamos, NM
Ning Li
Los Alamos National Laboratory, Los Alamos, NM
Paper No:
ICONE14-89066, pp. 337-342; 6 pages
Published Online:
September 17, 2008
Citation
Zhang, J, & Li, N. "Comparisons of the Oxide Layer Between Static Liquid-Bismuth-Eutectic and Gas Environments." Proceedings of the 14th International Conference on Nuclear Engineering. Volume 3: Structural Integrity; Nuclear Engineering Advances; Next Generation Systems; Near Term Deployment and Promotion of Nuclear Energy. Miami, Florida, USA. July 17–20, 2006. pp. 337-342. ASME. https://doi.org/10.1115/ICONE14-89066
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