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Paper Titles
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The Prediction of Failure Pressure of Gas Pipeline with Multi Corroded Region
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Evaluation of Wagner Interaction Parameter in Fe-Mn-Si-Nb-Ti-V-C System
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Bounds of the Thermal Conductivity in Discontinuously Reinforced Metal-Matrix Composites
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Evaluation of Wagner Interaction Parameter in Fe-Mn-Si-Nb-Ti-V-C System

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Abstract:

The dilute solution model is quite widely used because the chemical potential is more easily defined than that in the sub-lattice model. In the present study, the thermodynamic model for the Fe-Mn-Si-Nb-Ti-V-C system was conducted by evaluating Wagner interaction parameters. The data used in this work was collected and modified by means of TCFE 2000-database in Thermo-Calc and up-to date references. The relationship of interaction parameters(L) in the sub-lattice model and Wagner interaction parameters in the dilute solution model was derived. The composition dependency of reference state and the higher order interaction parameters of the excess Gibbs energy were considered to evaluate Wagner interaction parameters. The equilibrium compositions of austenite and fractions of phases and the dissolution temperature of precipitates(NbC, VC, and TiC) were evaluated by the dilute solution model and compared with the results by the sub-lattice model.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

3327-3330

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.3327

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Online since:

January 2005

Authors:

Sang Hwan Lee, Kyung Sub Lee, Kyung Jong Lee

Keywords:

Dilute Solution Model, MX Carbide, Sub-Lattice Model, Wagner Interaction parameter

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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