Thermodynamic modeling of the Al-Cr system

被引：66
|
作者：
Liang, Yu [1 ]
Guo, Cuiping [1 ]
Li, Changrong [1 ]
Du, Zhenmin [1 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 460卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Al-Cr system; thermodynamic properties; CALPHAD technique;
D O I：
10.1016/j.jallcom.2007.06.046
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：
By means of calculation of phase diagram (CALPHAD) technique, the Al-Cr system was critically assessed. Three solution phases (liquid, body-centered cubic, face-centered cubic) were modeled with the Redlich-Kister equation. The intermetallic compounds Al7Cr, Al11Cr2, Al4Cr, Al8Cr5, AlCr2, which have a homogeneity range, were treated as the formulae Al-7(Al,Cr), Al-11(Al,Cr)(2), Al-4(Al,Cr), (Al,Cr)(8)(Al,Cr)(5), (Al,Cr)(Al,Cr)(2) using two-sublattice model, respectively. A set of self-consistent thermodynamic parameters describing the Gibbs energy of each individual phase as a function of composition and temperature for the Al-Cr system was obtained. (C) 2007 Elsevier B.V. All rights reserved.
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页码：314 / 319
页数：6
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