Study on theoretical bases of receiving composite alloy layers on surface of cast steel castings

The use of composite alloy layers on chosen surfaces of cast makes possible to obtain a special usable properties. Composite alloy layers on cast steel shapes with liquid phase. The processes which set in form during formation of composite layer, progress beside the transient heat flow that the transient thermal field. Decrease of temperature in surface layer of cast causes gradual stoppage of these processes. Their intensity depends from conditions of self-coolings of the cast in form and has decisive influence on the composite consolidation of chosen cast steel surfaces. In this paper the Simtec RWP computer program was used to determine process of alloyed composite layer formation on sphere casting made from carbon steel. The work has been made to compare calculation results with real experiment.