Journal of Inorganic Materials

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Thermodynamic Analysis of Fe-Ti-C System

LIU Chang-Song; HUANG Ji-Hua; YIN Sheng   

  1. University of Science and Technology Beijing; Beijing 100083; China
  • Received:2001-01-02 Revised:2001-09-03 Published:2002-03-20 Online:2002-03-20

Abstract: The thermodynamics of Fe-Ti-C system was calculated by the calculation of phase diagram (CALPHAD) method to
investigate the influences of Fe content and C/Ti atomic ratio on the adiabatic temperature (Tad) and equilibrium phases. It is
revealed that Fe content has more effects on the adiabatic temperature than on equilibrium phases. The desired equilibrium phases (TiC+Fe)
can be obtained no matter how Fe content value varies when C/Ti (atomic ratio) is fixed as about 1.0. The combustion synthesis reaction
of Fe-Ti-C system can be ignited thermodynamically with Fe weight content up to 55%. C/Ti atomic ratio has more effects on the equilibrium phases
than on adiabatic temperature. The temperature of graphite appearing decreases when C/Ti (atomic ratio) reduces. And the graphite content
varies from about 1% to 16% when C/Ti (atomic ratio) varies from 1.0 to 1.4 at low combustion temperature.

Key words: combustion synthesis, Fe-Ti-C system, thermodynamic analysis

CLC Number: