Thermodynamic evaluation of the C-Ta-Ti system and extrapolation to the C-Ta-Ti-N system

被引：20
|
作者：
Peng, Yingbiao [1 ]
Zhou, Peng [1 ]
Du, Yong [1 ]
Chang, Keke [2 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Rhein Westfal TH Aachen, D-52056 Aachen, Germany
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2013年 / 40卷
关键词：
C-Ta-Ti ternary system; C-Ta-Ti-N quaternary system; Phase diagram; Thermodynamic modeling; Miscibility gap; CEMENTED CARBIDES; W-C; PHASE-DIAGRAM; THERMOCHEMISTRY; DATABASE;
D O I：
10.1016/j.ijrmhm.2013.03.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on a critical review of the literature data, the C-Ta-Ti system has been thermodynamically evaluated. The CALPHAD (CALculation of PHAse Diagrams) approach is applied to assess the Gibbs energies of individual phases in this ternary system. A set of self-consistent thermodynamic parameters is obtained. Comprehensive comparisons between the calculations and literature data show that the reliable experimental information is satisfactorily accounted for by the present thermodynamic description. Based on the present work and the previous assessments of the sub-ternary systems, a thermodynamic description of the quaternary C-Ta-Ti-N system is extrapolated and used to predict the miscibility gap in the fcc carbonitride. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 42
页数：7
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