Thermodynamic assessments of the Cr-Si and Al-Cr-Si systems

被引：27

作者：

Cui, Senlin ^{[1
]}

Jung, In-Ho ^{[1
]}

机构：

[1] McGill Univ, Dept Min & Mat Engn, 3610 Univ St, Montreal, PQ H3A 0C5, Canada

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 708卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

The Cr-Si system; The Al-Cr-Si system; Phase diagram; Thermodynamic assessment; QUASI-CHEMICAL MODEL; CRYSTAL-STRUCTURE; ISOTHERMAL SECTION; CHROMIUM; ALLOYS; ENTHALPY; UPDATE; CR3SI;

D O I：

10.1016/j.jallcom.2017.03.042

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：

Thermodynamic assessments for the Cr-Si and Al-Cr-Si systems were conducted on the basis of the critically evaluated thermodynamic and phase diagram data available in the literature. The Modified Quasi-chemical Model (MQM) was utilized to model the Gibbs energy of the liquid phase and the Compound Energy Formalism (CEF) was used to model the solid phases. Comprehensive comparison between the model-predicted and the experimentally measured phase diagram and thermodynamic property data indicates that the optimized thermodynamic descriptions for the Cr-Si and Al-Cr-Si systems are reliable. Accurate thermodynamic descriptions obtained in the present work in the form of a set of Gibbs energies of all the solid and liquid phases can be used to calculate the phase equilibria and thermodynamic properties in the Al-Cr-Si system at any composition and temperature. As the application of the present thermodynamic study, the solubility limit of Cr in the Al-Si alloy was calculated. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：887 / 902

页数：16

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