Phase transformations in low-carbon steels, modelling the kinetics in terms of the interface mobility

Citation
Y. Van Leeuwen et al., Phase transformations in low-carbon steels, modelling the kinetics in terms of the interface mobility, J PHYS IV, 9(P9), 1999, pp. 401-409
Citations number
17
Categorie Soggetti
Physics
Journal title
JOURNAL DE PHYSIQUE IV
ISSN journal
11554339 → ACNP
Volume
9
Issue
P9
Year of publication
1999
Pages
401 - 409
Database
ISI
SICI code
1155-4339(199909)9:P9<401:PTILSM>2.0.ZU;2-U
Abstract
The mechanical properties of steel are determined by the microstructure tha t develops during the production process and is a joint result of effects o f chemical composition and of heat treatment. This paper deals with the kin etics of the phase transformation between the high temperature FCC-phase au stenite and the low temperature BCC-phase ferrite as it occurs during contr olled cooling. In order to predict the transformation kinetics, a physical model has been developed that considers both composition effects and the ac tual lattice transformation rate. The model is verified against experimenta l dilatometry data for three lean carbon-manganese steel grades. Notwithsta nding the model having no adjustable parameters, it yields adequate simulat ions of the transformation kinetics.