|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Thermodynamic Applications, Optimizations and Simulations in High-Temperature Processes: An EPD Symposium in Honor of Christopher W. Bale's 70th Birthday
||NN-13: Thermodynamic Modeling of Ti-Fe-Cr Ternary System
||Shusen Wang, Lin Chongmao, Li Baotong, Wang Hongbin, Lu Xionggang, Li Chonghe
|On-Site Speaker (Planned)
The Ti-Fe-Cr ternary system is one of the most important systems to developing low cost titanium alloys containing these three elements. However, no full thermodynamic descriptions were published. In this paper, previous work of the Ti-Fe-Cr ternary system and its related binary systems are reviewed. Based on the Ti-Fe, Ti-Cr and Fe-Cr binary systems assessed before and the experimental data reported in the literature, the Ti-Fe-Cr ternary system is firstly assessed by means of the CALPHAD method. The liquid, bcc, hcp, and fcc phases are described as solid solution model. The TiFe and Laves phases (C14, C15, C36) are described as two-sublattice model. A new ternary phase Ti5Cr8Fe16 was confirmed, and the model is treated as (Ti)5(Cr,Fe)24. Isothermal sections of 923K, 1073K and 1273K and some invariant reactions are calculated. It is shown that the present calculations are in good agreement with the most of the experimental results.
||Planned: TMS Journal: Metallurgical and Materials Transactions