Article
A semi-empirical approach to the prediction of deformation behaviors of β-Ti alloys
Scripta Materialia
Document Type
Article
Disciplines
Publication Version
Accepted Manuscript
Publication Date
1-1-2019
DOI
10.1016/j.scriptamat.2018.08.035
Abstract
A semi-empirical approach based on the compositional average electron-to-atom ratio (e/a¯) and atomic radius difference (∆r¯) was proposed to refine the “d-electron method”. The e/a¯−∆r¯ diagram shows that Twinning/Stress-Induced Martensite (SIM) activates when ∆r¯ > −2.5, and a low e/a¯ or absolute value of ∆r¯ favors Twinning/SIM by reducing the resistance of lattice shear. In addition to the phase stability, it suggests that the valence electron number and atomic radius of alloying element also determine the deformation mechanism in body-centered cubic Ti alloys. This alloy design method was verified by the tensile results of Ti-4Mo-4Co and Ti-6Mo-4Zr (at.%) alloys.
Creative Commons License
Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International
Copyright Owner
Acta Materialia Inc.
Copyright Date
2018
Language
en
File Format
application/pdf
Citation Information
C. H. Wang, Alan M. Russell and G. H. Cao. "A semi-empirical approach to the prediction of deformation behaviors of β-Ti alloys" Scripta Materialia Vol. 158 (2019) p. 62 - 65 Available at: http://works.bepress.com/alan_russell/45/
This is a manuscript of an article published as Wang, C. H., A. M. Russell, and G. H. Cao. "A semi-empirical approach to the prediction of deformation behaviors of β-Ti alloys." Scripta Materialia 158 (2019): 62-65. DOI: 10.1016/j.scriptamat.2018.08.035. Posted with permission.