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Vol.30, No.8, 1005 ~ 1015, 1992
Title
Parameters Required in Model Calculations of theα/γ Phase Equilibrium in the Fe - C System
임상호Sang Ho Lim, 강일구Il Koo Kang
Abstract
Parameters needed in model calculations of the α/γ phase equilibrium in Fe-C alloys are calculated by using new Monte Carlo procedures. The parameters include the carbon-carbon interaction energies and standard carbon potentials in the αand γ phases and the relative lattice stability of pure bcc and fcc Fe. Accurate values of the model parameters are determined by a comprehensive analysis of the existing experimental carbon activity data in both the αand γ phases and by utilizing the Fe-C phase diagram. The parameters determined in the present work together with the new Monte Carlo procedures will surely provide more confidence in the low temperature extrapolation of the metastable α/γ phase equilibrium.
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