Paper Title:

Thermodynamic Evaluation and Assessment of the Ti-U Binary System

Periodical Applied Mechanics and Materials (Volume 187)
Main Theme Mechanical, Industrial and Manufacturing Technologies
Edited by Li Kai
Pages 272-277
DOI 10.4028/www.scientific.net/AMM.187.272
Citation Zhan Min Cao et al., 2012, Applied Mechanics and Materials, 187, 272
Online since June, 2012
Authors Zhan Min Cao, Kun Peng Wang, Guang Wei Du, Zhi Yu Qiao
Keywords CALPHAD, Evaluation, Ion-Bonding Model, Miedema Model, Thermodynamic Properties
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Abstract

The thermodynamic description of the Ti-U binary system is obtained by the CALPHAD method using Thermo-Calc software and based on the estimated thermodynamic properties using ion-bonding model and Miedema model as well as the experimental phase diagram information. The liquid, αU, βU, δTi, and γ phases are assumed to be substitutional solutions with Redlich-Kister formula for the expressions of their excess Gibbs energy. The intermetallic compound TiU2 is treated as a stoichiometric compound. The calculated phase equlibria are in good agreement with the estimated and available experimental phase diagram data.