Thermodynamic Evaluation of the C-Ta-Ti System and Extrapolation to the C-Ta-Ti-N System

摘要：

　　A thermodynamic assessment of the C-Ta-Ti system has been made based on critical evaluations of the literature data.A set of self-consistent thermodynamic parameters for the Gibbs energies of individual phases in the C-Ta-Ti system is obtained by using the CALPHAD approach.Comprehensive comparisons between the calculated and measured phase diagrams available in the literature 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 carbide.

关键词： C-Ta-Ti ternary system C-Ta-Ti-N quaternary system phase diagram thermodynamic modeling miscibility gap

作者: Peng Yingbiao Du Yong Zhou Peng Keke Chang

作者单位: State Key Laboratory of Powder Metallurgy,Central South University,Changsha,Hunan,410083,China Materials Chemistry,RWTH Aachen University,D-52056 Aachen,Germany

会议类型: 国际会议

会议名称: 2012 Zhuzhou International Conference on Cemented Carbides(株洲硬质合金国际学术会议)

会议地点: 株洲

会议语种:英文

页码: 425-434

在线出版日期: 2012-09-12（万方平台首次上网日期，不代表论文的发表时间）