Open AccessTheoretical assessment for the mixing properties of AlMg liquid alloys at 1073K
Author(s) -
Shayista Ahmad,
M.P. Sah,
Rajendra Prasad Chaudhary,
I.S. Jha,
Jagdhar Mandal
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2070/1/012074
Subject(s) - enthalpy of mixing , gibbs free energy , entropy of mixing , thermodynamics , mixing (physics) , enthalpy , long wavelength limit , entropy (arrow of time) , chemistry , materials science , physics , condensed matter physics , quantum mechanics
The alloying behavior of AlMg alloy in the liquid form at 1073 K has been theoretically investigated in the framework of four-parameter model which is based on Maclaurin series. The analytical expressions for thermodynamic functions such as excess free mixing energy, free mixing energy, enthalpy of mixing and entropy of mixing and microscopic functions such as concentration fluctuations at the long wavelength limit and Warren-Cowley chemical short range order parameter have been derived. These expressions have been used to compute the excess Gibbs free energy of mixing, Gibbs free energy of mixing, activity, enthalpy(heat) of mixing, excess entropy of mixing, entropy of mixing, concentration fluctuations in long wavelength limit and Warren-Cowley short range order parameters of AlMg liquid alloys at 1073 K. The investigation shows the excellent concurrence between the experimental and theoretical measurements of the mixing properties of AlMg liquid alloys at 1073 K. Interaction parameters of energy depends on temperature.