Partial and integral enthalpies of mixing of Cu-Fe-Ti melts at 1873 K

被引：5

作者：

Abdulov A.R. ^{[1
]}

Dreval' L.A. ^{[1
]}

Agraval P.G. ^{[1
]}

Turchanin M.A. ^{[1
]}

机构：

[1] Donbass State Mechanical Engineering Academy, Kramatorsk

来源：

Russ. Metall. (Metally) | 2009年 / 5卷 / 371-376期

关键词：

Composition ranges - Concentration ranges - Enthalpy of mixing - Gibbs-Duhem equation - Integral enthalpies - Isoperibolic calorimetry - Partial enthalpies - Ternary interactions;

D O I：

10.1134/S0036029509050012

中图分类号：

学科分类号：

摘要：

The partial enthalpy of mixing of titanium in Cu-Fe-Ti melts are studied by high-temperature isoperibolic calorimetry at 1873 K in the composition range xTi = 0-0.6 along three sections with a ratio xFe / xCu = 1/3, 1, and 3. The integral enthalpy of mixing of the ternary melts is calculated by integrating the Gibbs-Duhem equation and is described in terms of the Redlich-Kister-Muggianu model. Function ΔH demonstrates negative values over a wide concentration range. The contribution of a ternary interaction to the enthalpy of mixing of Cu-Fe-Ti melts is mainly positive. The first partial enthalpies of mixing of Al, Sn, Si, Y, Zr, Hf, and Ni with Cu-Fe-Ti melts are negative and indicate an increase of the thermodynamic stability of the liquid phase upon the dissolution of these additions. © Pleiades Publishing, Ltd., 2009.

引用

页码：371 / 376

页数：5

共 16 条

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