Experimental investigation and thermodynamic calculation of the Fe–Si–Bi system. (September 2020)

• Record Type: Journal Article
• Authors: Zhu, Ze; Liu, Ya; Wu, Changjun; Peng, Haoping; Wang, Jianhua; Su, Xuping
• Is Part Of: Calphad. Volume 70(2020)
• Publication Date: 2020-09
• Subjects: Fe–Si–Bi system -- Thermodynamics -- CALPHAD -- Phase relationship; Phase diagrams -- Data processing -- Periodicals; Thermochemistry -- Data processing -- Periodicals; Diagrammes de phases -- Informatique -- Périodiques; Thermochimie -- Informatique -- Périodiques; Thermodynamica; Electronic journals; 541.363
• DOI: 10.1016/j.calphad.2020.101767
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: Phase relationship of the Fe–Si–Bi ternary system was established by optical microscope, scanning electron microscope in combination with energy dispersive spectroscopy and X–ray diffraction. Isothermal sections of the Fe–Si–Bi system at 973 and 1173 K consist of 3 and 4 three–phase equilibrium regions, respectively. The liquid phase is in equilibrium with all the Fe–Si phases. No ternary compound is found and Bi is almost insoluble in the Fe–Si phases. Combining the reliable thermodynamic data from literature with the current experimental work, phase relationship of the Fe–Si–Bi system have been thermodynamically extrapolated. The calculated results are in good agreement with the experimental results.