| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Laser Powder-bed Fusion (LPBF) Based Additive Manufacturing of Ti-6Al-4V + TiB In-situ Metal Ceramic Composite |
| Author(s) |
Tirthesh Ingale, Abhishek Sharma, Sai Sree Meenakshi Varahabhatla, Advika Chesetti, Srinivas Aditya Mantri, D. Zhili, R. V. Ramanujan, M. W. Zhou, Narendra B. Dahotre, Rajarshi Banerjee |
| On-Site Speaker (Planned) |
Tirthesh Ingale |
| Abstract Scope |
Metal-Ceramic composites display excellent combination of mechanical properties suitable for myriad applications. While these attractive properties ensue from hard ceramic particles dispersed within a ductile metallic matrix, the very same dispersion make them difficult to process using conventional techniques. Additive-manufacturing based techniques potentially offer the promise of bypassing this bottleneck, with the added advantage of near-net shape component design. The present study investigates LPBF (laser powder-bed fusion) based processing of a low-density Ti-6Al-4V + TiB in situ metal-ceramic composite. By optimizing the process parameters, we have been able to realize low-porosity, structurally solid builds with dispersion of boride particles within pockets of a metastable beta titanium-based microstructure. Zener pinning and the constitutional supercooling provided by the boron addition results in a heterogenous cellular microstructure surrounded by pockets of Ti-6Al-4V. These have been further studied via advanced characterization techniques such as atom probe tomography and transmission electron microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |