FORGAS JUNIOR, A.Rodrigo Magnabosco2023-08-262023-08-262010-07-26FORGAS JUNIOR, A.; MAGNABOSCO, R. Influence of the intercritical annealing time on the microstructure of a low carbon dual-phase steel. 65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010, v. 4, p. 3426-3437, jul. 2010.https://repositorio.fei.edu.br/handle/FEI/4990This work has the main purpose of analyzing the intercritical annealing time on the microstructure transformation kinetics of a dual-phase steel. Computational simulations confirmed the experimental observation, showing that annealing time at 755°C influences the formation of the austeno-ferri tic microstructure, and this can be attributed to the alloying elements partition and redistribution through ferrite-austenite interfaces. Kinetics calculations using a spherical model of diffusion, and a unidimensional model with bi-directional diffusion flux, resulted in equivalent results, which can partially describe the observed kinetics of transformation. Determination of basic metallographic parameters of the as-received material (martensite fraction and mean intercept), together to the knowledge of alloy elements distribution, are prerequisites to the success of the computational simulation.Acesso RestritoArtigo de eventoAnnealing timeDiffusion-controlled phase transformationDual-phase steel