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Author

Kim, Ji Hyun
UNIST Nuclear Innovative Materials Laboratory(UNIMAT)
Research Interests
  • High temperature water corrosion

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A study of early corrosion behaviors of FeCrAl alloys in liquid lead-bismuth eutectic environments

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Title
A study of early corrosion behaviors of FeCrAl alloys in liquid lead-bismuth eutectic environments
Author
Lim, JunNam, Hyo OnHwang, Il SoonKim, Ji Hyun
Keywords
Corrosion behavior; Energy dispersive X ray spectroscopy; FeCrAl; FeCrAl alloys; Heavy liquid metal coolants; High temperature; Higher temperatures; Iron-based; Kanthal; Key issues; Lead-bismuth eutectics; Liquid lead; Nuclear energy systems; Oxide layer; Scanning electrons; Structural materials
Issue Date
201012
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF NUCLEAR MATERIALS, v.407, no.3, pp.205 - 210
Abstract
Lead and lead bismuth eutectic (LBE) alloy have been increasingly receiving attention as heavy liquid metal coolants (HLMC) for future nuclear energy systems. The compatibility of structural materials and components with lead bismuth eutectic liquid at high temperature is one of key issues for the commercialization of lead fast reactors. In the present study, the corrosion behaviors of iron-based alumina-forming alloys (Kanthal-AF (R), PM2000, MA956) were investigated by exposing to stagnant LBE environments at 500 degrees C and 550 degrees C for up to 500 h. After exposures, the thickness and chemistry of the oxide layer on the specimens were analyzed by scanning electron microscopy, scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. As a result, the oxide characteristics and the corrosion resistance were compared. In this study, it was shown that the corrosion resistance of FeCrAl ODS steels (PM2000, MA956) are superior to that of FeCrAl ferritic steel (Kanthal-AF (R)) in higher temperature LBE.
URI
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DOI
http://dx.doi.org/10.1016/j.jnucmat.2010.10.018
ISSN
0022-3115
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