A simple model to ascertain the initial formation concentration of athermal omega phase in titanium alloys

作者：Lin, Cheng^*; Huang, Shixing; Yin, Guili; Zhang, Aimin; Zhao, Zhiwei; Zhao, Yongqing

来源：Computational Materials Science, 2016, 123: 263-267.

DOI：10.1016/j.commatsci.2016.07.006

• Titanium alloys
• Phase transformations
• Modeling
• Thermodynamics
• Electronic band structure

This article describes a simple model to ascertain the initial formation concentration of athermal omega phase in titanium alloys through the self-consistent bond length difference (SCBLD) method in the empirical electron theory (EET) of solids and molecules. The results indicate that the calculated cohesive energies can be used to determinate the initial formation concentration of athermal omega phase in titanium alloys in combination with the critical concentration C-k. Moreover, the deterministic model accords well with the experimental results, with the average value of absolute relative errors of 4.90%.

• 出版日期2016-10
• 单位西北有色金属研究院; 辽宁工业大学