INSTITUTO DE ESTUDIOS AVANZADOS EN INGENIERIA Y TECNOLOGIA
Unidad Ejecutora - UE
A cellular automaton-finite difference simulation of the ausferritic transformation in ductile iron
PATRICIA M. DARDATI; ADRIÁN D. BOCCARDO; LUIS A. GODOY
MATERIALS SCIENCE AND TECHNOLOGY
Lugar: London; Año: 2018 vol. 34 p. 1710 - 1710
The development of the ausferritic transformation of a ductile iron was analysed using a novel cellular automaton-finite difference model, which considers geometrical details of the microstructure, nucleation of the new phase at graphite nodule surface, contact between growing phases, and carbon diffusion in austenite. The role of nucleation, austenite carbon enrichment, and contact between phases in the different stages of the growth kinetics were studied. Moreover, a parametric study was performed to investigate the influences of graphite nodule size, and austenitizing and austempering temperatures on the required time to end the transformation and final phase fractions. The obtained results are in agreement with experimental data reported in the literature.