MODELING OF THE ALLOYING SUBSTANCES DISTRIBUTION IN THE MELT DURING PULSED INDUCTION HEATING OF THE SUBSTRATE

Under study is the applicability of the high-frequency electromagnetic field impulse for metal heating and melting with a view to its subsequent alloying. The processes of heating, phase transition, heat and mass transfer in the molten metal, solidification of the melt are considered with the aid the proposed mathematical model. The substrate surface is covered with a layer of alloying substances. The distribution of the electromagnetic energy in the metal is described by empirical formulas. Melting and solidification of the metal is considered at the Stephan’s approximation. The flow in the liquid is described by the Navier – Stokes equations in the Boussinesq approximation. According to the results of numerical experiments, the flow structure in the melt and distribution of the alloying substances was evaluated versus the characteristics of induction heating.

Keywords:
numerical simulation, metal alloying, impulse induction heating, heat and mass transfer.
УДК 519.6:532.517 + 621.7 + 669.17

MODELING OF THE ALLOYING SUBSTANCES DISTRIBUTION IN THE MELT DURING PULSED INDUCTION HEATING OF THE SUBSTRATE