Thermodynamic calculation and solidification behavior of the La-Pr-Fe and Ce-Pr-Fe ternary systems
| Autor: | M.H. Rong, Qingrong Yao, H.Y. Zhou, Kaicheng Yang, Jiang Wang, D. Su, Guang Hui Rao |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Phase transition Materials science General Chemical Engineering 0211 other engineering and technologies Thermodynamics 02 engineering and technology General Chemistry 01 natural sciences Spectral line Isothermal process Computer Science Applications Differential thermal analysis Phase (matter) 0103 physical sciences Ternary operation CALPHAD 021102 mining & metallurgy |
| Zdroj: | Calphad. 74:102285 |
| ISSN: | 0364-5916 |
| Popis: | Phase equilibria and solidification behavior of the La-Pr-Fe and Ce-Pr-Fe ternary systems were carried out through experimental investigation and thermodynamic calculation. Phase transition temperatures and solidification microstructure of La-Pr-Fe and Ce-Pr-Fe ternary alloys were studied by means of differential thermal analysis (DTA) and scanning electron microscopy with energy dispersive spectra (SEM-EDS). Based on the experimental results determined in this work and reported in the literature, the La-Pr-Fe and Ce-Pr-Fe ternary systems were calculated by the CALPHAD method, and reasonable thermodynamic parameters of these two ternary systems were obtained in this work. The calculated isothermal section and vertical section of the La-Pr-Fe and Ce-Pr-Fe ternary systems are in good agreement with the experimental results. The solidification processes of as-cast La-Pr-Fe and Ce-Pr-Fe ternary alloys were analyzed through thermodynamic calculation with Scheil model, which is satisfactorily consistent with the experimental solidification microstructure. |
| Databáze: | OpenAIRE |
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