About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Development of a Novel Ti-6Al-4V based Alloy Design Guideline via Controlled β Phase Metastability |
| Author(s) |
Kiwan Seo, Ji Young Kim, Do Hyang Kim, Eun Soo Park |
| On-Site Speaker (Planned) |
Kiwan Seo |
| Abstract Scope |
Ti-6Al-4V is a well-known lightweight alloy particularly widely used in the aerospace industry, due to its high specific strength and corrosion resistance. However, limited work hardening and machinability restrict its broader industrial applications. To address these limitations, this research introduces the transformation-induced plasticity (TRIP) mechanism into the Ti-6Al-4V alloy by systematically enhancing β phase stability. A novel alloy design strategy was established using the Bo-Md phase-stability diagram, in particular by examining the β phase composition calculated using CALPHAD methods; rather than the nominal composition of the alloy. This approach allowed us to precisely control the stability of the β phase and systematically expand the Bo-Md diagram specifically for the Ti-6Al-4V alloy system, enabling the design of TRIP Ti-6Al-4V-based alloys with tailored β metastability. This study expands the applicability of the Bo-Md diagram combined with thermodynamic modeling, offering a robust framework for designing advanced titanium alloys with improved mechanical performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Phase Transformations, Mechanical Properties |