Investigation of models to predict the corrosion of steels in flowing liquid lead alloys

Balbaud-Célérier, F.; Barbier, F.

doi:10.1016/s0022-3115(01)00431-7

Cited by 81 publications

(66 citation statements)

References 25 publications

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“…The correlation without considering the axial temperature difference can be found in Balbaud-Celerier and Barbier. 9) To render it dimensionless, the temperature ratio between the axial (closed loop flow) together with the correlations are shown in Fig. 6.…”

Section: Analysis Resultsmentioning

confidence: 99%

“…[6][7][8] Based on previous experiments, it is found that the corrosion rate in LBE systems depends on many factors such as exposure time, operation temperature, thermal gradient, solid and liquid compositions, flow velocity, etc., and corrosion occurs through several mechanisms such as mass transport, phase transport, erosion-corrosion and cavitation-corrosion. 9) Experimental simulations on all above thermal hydraulic conditions in the laboratory are difficult and expensive, if not impossible. Therefore theoretical modeling is important and necessary to get common information on corrosion rates in the LBE pipe/loop systems.…”

Section: Introductionmentioning

confidence: 99%

“…Balbaud-Celerier and Barbier 9) tried to apply previous local corrosion models to calculate corrosion rates in liquid metal loops by assuming that the corrosion product bulk concentration was zero. However, the authors considered the local conditions only, such as the velocity and local temperature.…”

Section: Introductionmentioning

confidence: 99%

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Modeling Corrosion and Precipitation in Non-isothermal LBE Pipe/Loop Systems

Chen

Zhang

et al. 2005

Journal of Nuclear Science and Technology

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A previous kinetic model on corrosion and precipitation for a non-isothermal LBE pipe/loop system is improved by considering a turbulent core region and a laminar sub-layer, respectively. Exact solutions of the mass transfer equations in both core and boundary regions are obtained. Based on the present model, both of the local corrosion/precipitation rate and bulk concentration can be calculated. The present study shows that the effects of the axial temperature profile on the corrosion/precipitation rate and bulk concentration by applying this model to DELTA loop at the Los Alamos National Laboratory. Correlations for average Sherwood number at the highest isothermal temperature section for both open pipes and close loops are presented. In addition, the present solution can be extended to the more general cases of high Schmidt number mass transfer in the developed turbulent wall-bounded shear flows.

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Section: Analysis Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling Corrosion and Precipitation in Non-isothermal LBE Pipe/Loop Systems

Chen

Zhang

et al. 2005

Journal of Nuclear Science and Technology

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“…A number of mechanisms of combined actions of flow and corrosion results in four main types of FAC: mass transport-controlled corrosion, phase transport-controlled corrosion, erosion corrosion, and cavitation corrosion. 7,23,24) …”

Section: 7)mentioning

confidence: 99%

Buoyancy-Enhanced Oxygen Transport in the Experimental Liquid Lead Bismuth Eutectic Container

Tan

Chen

Tan

2009

Journal of Nuclear Science and Technology

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The active oxygen control technique is a recently developed effective method for mitigating structural corrosions by forming a protective oxide film along the structural materials in corrosive lead bismuth eutectic (LBE) systems. The mechanisms of LBE corrosion and the oxidation of stainless steel in LBE environment have been analyzed. The active oxygen control technique is introduced and the oxidation experiment results with oxygen control are summarized. The buoyancy-enhanced oxygen transport, both laminar and turbulent, in the experimental LBE container has been numerically investigated using the finite volume method. The flux of oxygen at the gas-liquid and solid-liquid interfaces, the oxygen concentration in the bulk flow, and the rate of oxide layer formation are calculated. The time needed for the momentum and energy to reach the steady state and the time for the bulk concentration of oxygen to reach equilibrium are estimated. The rate of oxide layer formation on the steel surface under different thermal boundary conditions and diffusivities is also calculated. The numerical analysis provides a guideline for the design and setup of the apparatus in testing and calibrating low-concentration oxygen sensors and to study the oxidation of stainless steel containers for LBE.

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“…As a matter of fact, during the past decades, the dynamic corrosion behavior of the stainless steel in the molten lead-lithium alloy system in the nuclear industry has been widely studied. [15][16][17][18][19][20] It is generally concluded that (1) the corrosion behavior is velocity dependent; (2) the flow pattern at various speeds, i.e., laminar or turbulent flow, has a strong effect on the corrosion rate; and (3) the mechanisms of flow-induced corrosion may be different at various flow speeds. It can be mass-transport controlled, phase-transport controlled, erosion corrosion, or cavitation corrosion, according to the flow speed.…”

Section: A On-line Corrosion Vs Static Corrosionmentioning

confidence: 99%