About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Titanium Technology
|
Presentation Title |
Additive Manufacturing of Ti-Nb-Ta-Zr Beta Ti-Alloys |
Author(s) |
Peter Ibrahim, Moataz M. Attallah |
On-Site Speaker (Planned) |
Moataz M. Attallah |
Abstract Scope |
Ti-Nb-Ta-Zr beta alloys have lower elastic modulus, resulting into improved mechanical biocompatability with bone tissues than commercial Ti64 and CP-Ti. This study focuses on additive manufacturing of TNTZ alloy using Laser-Powder Bed Fusion, in particular process optimisation and mechanical behaviour. Laser energy density effect on the texture and the nature of the defects was studied. Moreover, the mechanical properties and microstructure of TNTZ with various thermal post-processing techniques such as HIP and heat treatments were evaluated using mechanical testing and electron microscopy. Findings indicate that TNTZ has high printability producing almost fully dense components with stable beta microstructure. The alloy is found to be very sensitive to thermal post-processing increasing its ultimate strength by 25% and introducing a stress-induced phase change effect when loaded. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Biomaterials, Characterization |