Model based study of temperature dependent thermodynamic and surface properties of Al-Ti-Ni-Cr system in liquid state

被引：0

作者：

Sah, D. K. ^{[1
,2
,3
]}

Mehta, U. ^{[2
]}

Adhikari, D. ^{[2
]}

Yadav, S. K. ^{[2
]}

机构：

[1] Tribhuvan Univ, Cent Dept Phys, Kirtipur, Nepal

[2] Tribhuvan Univ, Dept Phys, Mahendra Morang Adarsh Multiple Campus, Biratnagar, Nepal

[3] Tribhuvan Univ, Dept Phys, Mechi Multiple Campus, Bhadrapur, Nepal

来源：

PHYSICA B-CONDENSED MATTER | 2024年 / 695卷

关键词：

Quaternary alloy; Thermodynamic properties; Mixing tendency; Surface tension; Bulk phase; Surface phase; GENERAL-SOLUTION MODEL; INTEGRAL PROPERTIES; MO-TI; ALLOYS;

D O I：

10.1016/j.physb.2024.416471

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thermodynamic and surface properties of Al-Ti-Ni liquid alloy with adding Cr, Al-Ti-Ni-Cr, were studied at 2000 K, 2100 K, 2200 K, 2300 K, and 2400 K using different theoretical models. The self-consistent energy interaction parameters of constituent binary subsystems were taken from the literature for the purpose. The thermodynamic properties like excess Gibbs free energy of mixing and the activities of the components in the alloy were investigated using the General Solution Model (GSM). Surface tension of the liquid alloy and surface concentrations of components in it were calculated using Butler's model with the aid of determined thermodynamic functions. The mixing tendency of the Al-Ti-Ni-Cr liquid alloy was found to decrease with the addition of Cr atoms for all compositions at its melting temperature, 2000 K. The activity of Cr decreased while those of the remaining components increased with the temperature rise. The surface tension of both Al-Ti-Ni and Al-Ti-Ni-Cr liquid alloys decreased linearly at elevated temperatures.

引用

页数：8

共 45 条

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