| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
The Design of Novel Strain-Transformable Titanium Alloys for Laser-Based Additive Manufacturing |
| Author(s) |
Zhiyi Zou, Matthew Dunstan, Brandon McWilliams, Stuart Robertson, Richard Hague , Marco Simonelli |
| On-Site Speaker (Planned) |
Marco Simonelli |
| Abstract Scope |
Metastable β Ti alloys can achieve outstanding ductility and work hardening behaviour. As quenching is central to the development of these alloys, it is of interest to understand whether analogous materials could be designed and developed in laser additive manufacturing (laser powder bed fusion) where feedstocks experience rapid cooling cycles. We first propose a material design framework to identify printable metastable Ti alloys. We focus on the ternary Ti-Cr-Sn system for both its affordable character and interest in the biomedical field. The design framework combines empirical and thermodynamic criteria to compare stability of β phase and resistance to cracking during processing. We then study the printability of this alloy under various printing conditions and the development of strain induced twins and phase transformation as a function of the grain structure and the segregation of Cr and Sn using in situ x-ray diffraction techniques and state-of-the-art microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |