Abstract
The pathways for super-refined intragranular precipitation of α phase in Ti-5Al-5Mo-5V-3Cr (Ti5553) were studied using aberration-corrected electron microscopy and 3D atom probe tomography. Experimental results indicate clearly that the ω phase can influence this superrefined a precipitation. Phase field modeling based on structural and compositional information obtained from experiment shows that the presence of ω phase can modify the stress and compositional field in β matrix and therefore provide an extra driving force for α nucleation, as well as a nucleation site for α precipitation. An understanding of non-transformation pathway controlling super-refined α microstructure in Ti5553 has been developed and is described.
| Original language | English |
|---|---|
| Title of host publication | PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
| Subtitle of host publication | Whistler, Canada; 28 June 2015 through 3 July 2015 |
| Editors | Matthias Militzer, Gianluigi Botton, Lon-Qing Chen, James Howe, Chadwick Sinclair, Hatem Zurob |
| Place of Publication | Whistler BC Canada |
| Publisher | International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
| Pages | 663-670 |
| Number of pages | 8 |
| ISBN (Electronic) | 9780692437360 |
| Publication status | Published - 2015 |
| Externally published | Yes |
| Event | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 - Westin Whistler Resort & Spa, Whistler, Canada Duration: 28 Jun 2015 → 3 Jul 2015 https://www.eiseverywhere.com//ehome/ptm2015/ |
Conference
| Conference | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 |
|---|---|
| Abbreviated title | PTM 2015 |
| Country | Canada |
| City | Whistler |
| Period | 28/06/15 → 3/07/15 |
| Internet address |
Keywords
- Phase transformation
- Super-refined microstructure
- ω Assisted precipitation
Cite this
Zheng, Y., Williams, R. E. A., Shi, R., Gao, Y., Wang, D., Nag, S., ... Fraser, H. L. (2015). Integrated experimental and computational studies of non-conventional transformation pathways in titanium alloys. In M. Militzer, G. Botton, L-Q. Chen, J. Howe, C. Sinclair, & H. Zurob (Eds.), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015: Whistler, Canada; 28 June 2015 through 3 July 2015 (pp. 663-670). Whistler BC Canada: International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015.