Complete phase diagram thermodynamic database. He calculated the phase equilibrium of the system by using thermodynamic principles and plotted the phase diagram.After the phase diagram calculation is introduced, only the thermodynamic data of some key regions and some key phases of the phase diagram of the system can be experimentally measured to optimize the parameters of the Gibbs free energy model, and the whole phase diagram can be extrapolated to build the system. Under the conditions of high temperature, high pressure, and corrosive gases involved in the reaction, they will also face difficulties in composition control, container selection, and high temperature measurement, and the experimental determination is always Limited, one-sided, unable to make a complete and comprehensive understanding of the phase diagram and thermodynamic properties of the system.Figure 1: Fe-C phase diagramThen, the phase diagram calculation is a convenient solution. However, experimental phase diagrams require a lot of manpower and material resources. As we all know, phase diagrams can be tested experimentally.
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