| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Development of a TWIP Beta Titanium Alloy for Additive Manufacturing |
| Author(s) |
Mathew T. Cohen, Brian A Welk, Zachary T Kloenne, Gopal Babu Viswanathan, Paraic O'Kelly, Hamish Fraser |
| On-Site Speaker (Planned) |
Mathew T. Cohen |
| Abstract Scope |
Titanium alloys are of interest for use in a variety of additive manufacturing (AM) techniques due to their high strength-to-weight ratio as well as other properties. However, traditional titanium alloys (e.g., Ti-64) processed by AM typically have a columnar grain structure and require post-deposition heat treatment. In this work, the Bo-Md phase map was used to guide the development of new TWIP beta Ti alloys for AM. By combining a low volume fraction of alpha and TWIP, the as-deposited alloys can have good strength with the ability to work harden. Beta eutectoid stabilizer alloying additions were used to promote an equiaxed grain structure. Using a LENS™ AM system, compositionally graded specimens were deposited and then deformed to identify compositions where TWIP occurred. The identified compositions were deposited, tensile properties were determined, and the microstructure was characterized using SEM and TEM techniques. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Phase Transformations |