Calculation of solidification-related thermophysical properties for steels
Abstract
Special algorithms have been developed to calculate important solidification-related thermophysical properties: enthalpy and enthalpy-related data (i.e., specific and latent heat), density, and thermal conductivity for low-alloyed and stainless steels. The algorithms are heavily based on the use of earlier developed phase transformation models, an interdendritic solidification model (IDS), and an austenite decomposition model (ADC), which solve, as a function of temperature, the phase fractions and compositions needed in these calculations. As a result, the thermophysical properties can be calculated at any temperature, from 1600 °C to 25 °C, taking into account the discontinuities caused by special phase transformations (i.e., ferritic, austenitic and peritectic solidification, ferrite/austenite transformation, and austenite decomposition to various structures) influenced by the steel grade and the cooling conditions.
- Publication:
-
Metallurgical and Materials Transactions B
- Pub Date:
- April 1997
- DOI:
- 10.1007/s11663-997-0095-2
- Bibcode:
- 1997MMTB...28..281M
- Keywords:
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- Ferrite;
- Austenite;
- Material Transaction;
- Latent Heat;
- Cementite