MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
New Model for the Overall Transformation Kinetics of Bainite. Part 2: Validation
María Jesús SantofimiaFrancisca G. CaballeroCarlos CapdevilaCarlos García-MateoCarlos García de Andrés
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2006 Volume 47 Issue 10 Pages 2473-2479

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Abstract

A new model for the overall kinetics of the bainite transformation has been validated experimentally. The new model, presented in the 1st part of this work, is based in the displacive mechanism for bainite transformation. Thus, the bainite transformation kinetics of three medium carbon-high silicon steels has been studied. Results show that the model, which does not consider the effect of carbide precipitation in the bainite kinetics, predicts with a high degree of agreement the time evolution of bainitic ferrite volume fraction, even when lower bainite is present at the microstructure. Data from two additional medium carbon-high silicon steels, frequently reported in the literature, have been also used for reinforcing the validation, obtaining, again, a high agreement between the kinetic results for bainite transformation predicted by the model and those obtained experimentally.

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© 2006 The Japan Institute of Metals and Materials
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