Xingqiu CHEN
,
Hailan LI
,
Xueyong DING
,
P.Rogl
,
P.Podloucky
材料科学技术（英文）
The improved form of calculation formula for the activities of the components in binary liquids and solid alloys has been derived based on the free volume theory considering excess entropy and Miedema's model for calculating the formation heat of binary alloys. A calculation method of excess thermodynamic functions for binary alloys, the formulas of integral molar excess properties and partial molar excess properties for solid ordered or disordered binary alloys have been developed. The calculated results are in good agreement with the experimental values.
关键词:
Binary alloy
,
null
,
null
,
null
Xingqiu CHEN
,
Hailan LI
,
Xueyong DING
,
P.Rogl
,
R.Podloucky
材料科学技术（英文）
A new method of revising activity values has been derived based on the so called correction factor function for binary alloys with a large difference between two components. The correction factor is a function of physical properties formed by the difference of two components. Its absolute value increases with the enhancement of the difference in the character of components. It can be either positive or negative and the rules for selecting the sign of correction factor have been analyzed. Results are in good agreement with the experimental values.
关键词:
Correction factor function
,
null
,
null
