Title

Simulations of Metal Oxidation in Lead Bismuth Eutectic at a Mesoscopic Level

Document Type

Article

Publication Date

2009

Publication Title

Journal of Engineering for Gas Turbines and Power

Volume

131

Issue

3

First page number:

1

Last page number:

11

Abstract

The corrosiveness of lead bismuth eutectic (LBE), as an ideal coolant candidate in reactors and accelerator driven systems (ADSs), presents a critical challenge for safe applications. One of the effective ways to protect the materials is to form and maintain a protective oxide film along the structural material surfaces by active oxygen control technology. The oxidation of metals in LBE environment has been investigated numerically at a mesoscopic scale. A novel stochastic cellular automaton (CA) model has been proposed considering the transport of oxygen along the grain boundaries. The proposed mesoscopic CA model has been mapped with the experimental data. A parametric study was conducted in order to check the importance of the main explicit parameters of the mesoscopic model. The boundary condition at the far end of the specimen has been investigated for the CA model. The model has benchmarked with the analytical solution and with the previous work of a pure diffusion process, and significant agreement has been reached. The developed CA model can be used to solve diffusion problem.

Keywords

Active oxygen; Boundary condition; Cellular automata; Coolant; Corrosion and anti-corrosives; Corrosive effects; Eutectics; Lead Bismuth; Liquid metal cooled reactors; Modeling; Nuclear reactor; Numerical analysis; Numerical simulation; Oxidation; Oxide coating

Disciplines

Acoustics, Dynamics, and Controls | Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Nuclear Engineering

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Identifier

DOI: 10.1115/1.3078702

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