| Autor: |
van Leeuwen, Y., Kop, T. A., Sietsma, J., van der Zwaag, S., van Leeuwen, Y., Kop, T. A., Sietsma, J., van der Zwaag, S. |
| Zdroj: |
Journal de Physique IV - Proceedings; September 1999, Vol. 9 Issue: 1 pPr9-401-Pr9-409, 4019401p |
| Abstrakt: |
The mechanical properties of steel are determined by the microstructure that develops during the production process and is a joint result of effects of chemical composition and of heat treatment. This paper deals with the kinetics of the phase transformation between the high temperature FCC-phase austenite and the low temperature BCC-phase ferrite as it occurs during controlled cooling. In order to predict the transformation kinetics, a physical model has been developed that considers both composition effects and the actual lattice transformation rate. The model is verified against experimental dilatometry data for three lean carbon-manganese steel grades. Notwithstanding the model having no adjustable parameters, it yields adequate simulations of the transformation kinetics. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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