| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Design and Development of 3D Printable Nb-based Alloys for High Temperature Applications |
| Author(s) |
Ishtiaq Ahmed Fazle Rabbi, Prithvi Dev Awasthi, Aidin Imandoust |
| On-Site Speaker (Planned) |
Ishtiaq Ahmed Fazle Rabbi |
| Abstract Scope |
Additive manufacturing (AM) offers ample opportunities to broaden the application of refractory metals and alloys by alleviating manufacturing challenges, such as high-temperature thermomechanical processing and machining. Nb, with a bulk density of 8.4 g/cc and good room temperature ductility, is a viable base material for the development of new AM alloys with superior high temperature performance and acceptable additive manufacturing attributes. This work aims to examine the compatibility of Nb-xW-xTi-1HfC wt.% alloys with laser-based additive manufacturing technologies. Chemical compositions of interest were selected based on the CALPHAD simulations, followed by powder prototyping and process parameter development. The microstructure and mechanical properties of AM fabricated specimens were characterized to determine the present phases, to analyze grain size and orientation, and to compare the mechanical performance of the experimental compositions. The acquired data was also used to validate the simulation results, finalize the chemical composition(s), and further improve the process parameters. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Other |