NUMERICAL STUDY OF THERMOPHYSICAL PROCESSES OF METAL MODIFICATION WITH HIGH-FREQUENCY INDUCTION HEATING SUBSTRATE SURFACE

Numerical modeling of thermophysical processes during the modification of the surface layer of metal in a moving substrate was carried out. The substrate surface is supposed to be covered with a layer of nanoscale particles of refractory compounds, which after penetration into the melt serve as centers of crystallization. For heating and melting of metal, continuous induction treatment by a powerful electromagnetic field is used. The distribution of electromagnetic energy in the substrate is described by empirical formulas. Based on the results of numerical experiments, the distribution of the temperature field, the dimensions of the melting and crystallization zones, the kinetics of solid phase growth, the area of the treated substrate surface, depending on the speed of its movement and the characteristics of induction heating were estimated.

Keywords:
induction treating, metal modification, heat transfer, nanoscale refractory particles, numerical simulation.
УДК 519.6:621.7

NUMERICAL STUDY OF THERMOPHYSICAL PROCESSES OF METAL MODIFICATION WITH HIGH-FREQUENCY INDUCTION HEATING SUBSTRATE SURFACE