Thermodynamic assessment of the Mg-Pr system

被引：18

作者：

Guo, CP ^{[1
]}

Du, ZM ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 399卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Mg-Pr phase diagram; Mg alloys; thermodynamic assessment; CALPHAD technique;

D O I：

10.1016/j.jallcom.2005.03.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Mg-Pr system was critically assessed by means of the Calculate of Phase Diagram (CALPHAD) technique. The solution phases (liquid, body-centered cubic, double hexagonal close-packed and hexagonal close-packed) were modeled with the Redlich-Kister equation. The intermetallic compounds, Mg12Pr and Mg2Pr, were treated as stoichiometric compounds. The compounds Mg41Pr5, Mg3Pr and MgPr, which have a homogeneity range, were treated as the formulae (Mg, Pr)(41) (Mg, Pr)(5), Mg(Mg, Pr)(3) and (Mg, Pr)(Mg, Pr) by a two-sublattice model with Mg and Pr or Mg on the first sublattice, and Mg and Pr on the second one, respectively. A set of self-consistent thermodynamic parameters of the Mg-Pr system was obtained. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：183 / 188

页数：6

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