Thermodynamic assessment of the La-Mg system

被引：11
|
作者：
Berche, A. [1 ]
Benigni, P. [1 ]
Rogez, J. [1 ]
Record, M. -C. [1 ]
机构：
[1] Aix Marseille Univ, IM2NP, CNRS, UMR 6242,FST St Jerome, F-13397 Marseille, France
来源：
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2011年 / 35卷 / 04期
关键词：
Thermodynamic assessment; CALPHAD method; Lanthanum; Magnesium; MAGNESIUM ALLOYS; ZN; METALLURGY; SOLUBILITY; GD;
D O I：
10.1016/j.calphad.2011.10.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermodynamic modeling and optimization of the La-Mg system is carried out by means of the CALPHAD method taking into account the latest experimental results. The liquid, bcc-La, fcc-La, dhcp-La and hcp-Mg solutions are modeled as substitutional solutions (La, Mg) using the Redlich-Kister formalism. The LaMg, LaMg2, La5Mg41, La2Mg17 and LaMg12 phases are treated as stoichiometric compounds, and the non-stoichiometry of LaMg3 is described as (La, Mg)(0.25) Mg-0.75. The results are in good agreement with the set of experimental data which were carefully discussed and selected. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：580 / 587
页数：8
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