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The paper deals with modelling of rolling and controlled cooling processes for rails. Coupling microstructure evolution model with the thermal-mechanical finite element (FE) code is the basis of the model developed by the Authors. Microstructure evolution in this model is simulated using closed form equations describing grain size and recrystallization kinetics, as well as kinetics of phase transformations. Properties of final products are predicted as functions of microstructural parameters such as pearlite grain size, colony size and interlamellar spacing. FE software Larstran was used in simulations of the rail rolling process. The objective of the paper was presentation how user procedures in Larstran can be used for implementation of microstructure evolution model in the FE code. Structure of the Larstran software and schematic diagram of the user producers are demonstrated. The program was tested and validated and selected simulations results are presented. It is shown that coupling of the FE Larstran software with the microstructure evolution model creates an efficient tool for simulation and optimization of the rail manufacturing process.
Keywords: FE software, users procedures, manufacturing of rails, cooling, microstructure evolution© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.