### Abstract

The purpose of the note is to establish the average continuity equation of solute which describes micro-macrosegregation phenomena in real alloy systems, i.e., where solute diffusion in the solid phase is almost zero (Scheil equation) and convection in the mushy region is present. Such a model can be directly incorporated into numerical codes for solidification. The physical consequences of such a nonequilibrium model are discussed in terms of equilibrium conditions at the solid-liquid interface during local solidification and remelting. The continuity equations for heat, mass, and momentum are briefly summarized for background.

Original language | English (US) |
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Pages (from-to) | 749-753 |

Number of pages | 5 |

Journal | Metallurgical Transactions A |

Volume | 21 |

Issue number | 2 |

State | Published - Feb 1990 |

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## Cite this

Rappaz, M., & Voller, V. (1990). Modeling of micro-macrosegregation in solidification processes.

*Metallurgical Transactions A*,*21*(2), 749-753.