Influence of the Pb–Bi hydrodynamics on the corrosion of T91 martensitic steel and pure iron

The Pb–Bi eutectic liquid alloy is considered as spallation target material in hybrid systems due to its suitable nuclear and physical properties. One of the parameters which may have a significant influence on the corrosion of steels in contact with molten lead alloys is the hydrodynamic regime. Co...

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Bibliographic Details
Published in:Journal of nuclear materials 2004-11, Vol.335 (2), p.204-209
Main Authors: Balbaud-Célérier, F., Terlain, A.
Format: Article
Language:English
Subjects:
Applied sciences
C0900
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
L0300
Nuclear fuels
S0600
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Summary:The Pb–Bi eutectic liquid alloy is considered as spallation target material in hybrid systems due to its suitable nuclear and physical properties. One of the parameters which may have a significant influence on the corrosion of steels in contact with molten lead alloys is the hydrodynamic regime. Corrosion tests have been performed in the CICLAD device at 400 and 470 °C at low oxygen concentrations and for various cylinder rotating speeds with T91 martensitic steel. The results obtained show that increasing the rotating speed leads to an increase of the corrosion rate. Moreover, the need for controlling finely the Pb–Bi physico-chemistry as well as the surface state of the samples is also shown by these tests. Finally, a comparison is made between the experimental corrosion rates and calculated values obtained by using equations expressing the mass transfer coefficient.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2004.07.009