The Solid Solubility Of Binary Alloy Was Calculated By Forming Enthalpy

In the field of solid physics and material science,the theory of the solid solubility is a subject that is worth to research.Under certain conditions,if the metal matrix can form a solid solution with the solute element or how many solute elements can be dissolved in the metal matrix,it has a significant meaning for the structure performance of the metallic material as well as practical use in some areas.A perfect theory of solid solubility not only can explain the existing solid solubility experiment data perfectly but also accurately predict whether the solute elements which have no experimental data can be dissolved in specific solvent elements or not.This opens up a new way for the development of the new materials.To a large extent,it saves a lot of manpower and material resources and time cost.So,the theory of solid solubility has a high theoretical significance.In this paper,the subregular model which can be used to calculate the formation enthalpy of alloy basis of the Miedema theory is uesd in the study for the theory of the binary alloy solid solubility.The formation enthalpy of binary alloy and the atomic radius of the solute element construct a two-dimensional coordinate diagram.The coordinates of each element are depicted on the graph.It is found that an elliptic curve(?)can distinguish the solute elements that can form solid solution with the matrix elements and the solute elements that can't form solid solution with the matrix elements.The parameters of the elliptic curve m,n,c and d are related to the parameters of the solvent elements,namely m?R0?n?AH0,c?(?R03)-(1/2),d?E.