Title: Aplicação do método inverso de condução de calor na avaliação de fluidos de resfriamento para têmpera
Abstract:Steels quenching involves part austenitization followed by a fast cooling to promote martensitic microstructure formation.It is necessary to evaluate quenchants in order to keep the quenching process ...Steels quenching involves part austenitization followed by a fast cooling to promote martensitic microstructure formation.It is necessary to evaluate quenchants in order to keep the quenching process under control.The most important cooling process' parameters are the heat transfer coefficient and/or the heat flux between the quenchant and the part to be cooled.One of the methods to evaluate quenchants (cooling media) and to know what is happening inside the part during the cooling in the thermal point of view is the inverse heat conduction problem.The inverse heat conduction problem consists in the determination of parameters like heat flux, cooling rate and temperature in any position across the part, as well as the heat transfer coefficient.These parameters are obtained from temperature measurements in one or more points inside the part.The scope of this work was to develop a software based in the inverse heat conduction problem in order to evaluate quenchants for quenching.The validation of this code was made using water, soybean oil, mineral oil and NaNO 3 aqueous solution.Read More