Specific heat, enthalpy, and density of undercooled liquid Fe–Si–Sn alloy

Abstract

The specific heat of liquid Fe 90 Si 6.95 Sn 3.05 alloy has been investigated by electromagnetic levitation drop calorimetery in the temperature range of 1390-2140 K. The enthalpy of this liquid alloy increases linearly with the rise of temperature. Furthermore, the enthalpy obtained from molecular dynamics calculation shows a similar trend to the experimental results in a broader temperature range of 1000-2200 K. The calculated specific heat is 39.7 J mol À1 K À1 , which agrees well with the experimental result of 39.9 J mol À1 K À1 . The density of this liquid alloy decreases as a quadratic function of temperature.

Thermophysical Properties of Undercooled Alloys: An Overview of the Molecular Simulation Approaches

“…Even the specific heat of some ternary alloys is also reported [52,114]. The determinant of EAM or MEAM parameters requires the relevant experimental or first-principle results, which shows more difficult for the complicated ternary systems.…”

“…Besides the above alloys, Fe-Ni, Ni-Al and Ni-Mo alloys are also studied [ 46 – 48 ], and these data contribute to the development of theoretical researches in phase transition and liquid physics. Even the specific heat of some ternary alloys is also reported [ 52 , 114 ]. The determinant of EAM or MEAM parameters requires the relevant experimental or first-principle results, which shows more difficult for the complicated ternary systems.…”

Concentration Depended Thermodynamic Properties of Fe-Co Liquid Binary Alloy

“…Recently interest has been found to investigate the thermodynamical properties of liquid binary and ternary alloys [1][2][3][4][5][6][7][8][9][10][11][12]. A technique based on the Gibbs-Bogoliubov (GB) inequality is well established and very effectively used in past [13][14][15][16][17][18][19] to investigate the thermodynamical properties of liquid binary alloys using pseudopotential theory.…”

“…A technique based on the Gibbs-Bogoliubov (GB) inequality is well established and very effectively used in past [13][14][15][16][17][18][19] to investigate the thermodynamical properties of liquid binary alloys using pseudopotential theory. In such type of studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], it is found that thermodynamical properties of liquid binary alloys are sensitive to the form of the model potential used, structural part of the energy, form of the local field correction function and volume of the mixing.…”

Liquid Supercoolability and Synthesis Kinetics of Quinary Refractory High-entropy Alloy

“…The thermophysical properties such as the density and specific heat of liquid high-entropy alloys, particularly those in supercooled state, are their essential parameters to accomplish the material design, investigate the solidification process kinetics and optimize the microstructure and properties16171819202122. In the specific case of refractory tungsten-involving HEAs, almost all the conventional container-based measurement techniques become inadequate.…”