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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
TEMPERATURE EFFECT ON MICROSTRUCTURAL ANALYSIS OF STEEL DURING HEAT TREATMENT
Submission Author:
SAMUEL BRITO , RJ , Brazil
Co-Authors:
SAMUEL BRITO, RODOLFO SOBRAL, Luiz Carlos Sacramento, Marcos Paulo de Souza Junior
Presenter: SAMUEL BRITO
doi://10.26678/ABCM.ENCIT2020.CIT20-0108
Abstract
The present work demonstrates the influence of heat transfer on the evolution of the microstructure of a SAE 1020 carbon steel flat plate. The solution was developed by numerical simulation of the heat transfer equation using the finite difference method and the Crank-Nicolson scheme. The progress of the microstructure is directly related to the mechanical properties of the material, being mainly influenced by temperature. Since the heat transfer in the plate occurs from the edges to the center, the temperatures are higher in the extreme regions, so these regions will have higher temperatures and will reach thermal equilibrium first than the center. Thus, the extreme regions will have more time within the isothermal range, therefore they will have greater evolution of their microstructure and higher rates of recrystallization. The preliminary results show the strong influence of the boundary conditions on the precision of the solution in relation to the expected real model.
Keywords
Numerical simulation, Heat transfer, microstructure analysis, Recrystallization
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