| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Processing Parameters Driven Microstructural Evolution and Corrosion Performance of Laser Additively Fabricated Bio-medical Ti-25Nb alloys |
| Author(s) |
Selvamurugan Palaniappan, Madhavan Radhakrishnan, Shashank Sharma, Rajarshi Banerjee, Narendra B. Dahotre |
| On-Site Speaker (Planned) |
Selvamurugan Palaniappan |
| Abstract Scope |
Ti-Nb alloys have been widely utilized in biomedical applications due to their impressive attributes such as corrosion resistance, biocompatibility, and high mechanical strength combined with a low Young's Modulus. Despite their extensive use, not many studies have explored the application of additive manufacturing to assess the material properties for specific biomedical uses. Considering this, efforts were made to employ laser-based powder bed fusion (LPBF) to fabricate Ti-25 wt.% Nb alloys. The fabricated samples were thoroughly examined to analyze their microstructures and identify the phases. Analytical thermal modeling using COMSOL was employed to establish a relationship between the phase transformation and microstructural evolution in Ti-25Nb alloys. To evaluate the biocorrosion response, the samples were subjected to potentio-dynamic polarization and electrochemical impedance spectroscopy tests in simulated body fluid at a physiological temperature of 37 ℃. These results were then compared with the AM printed samples. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Phase Transformations |