| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
A-38: Development and Assessment of a Novel TiVNbMo-based Refractory High Entropy Alloy Manufactured by Laser Powder Bed Fusion for High Temperature Applications |
| Author(s) |
Lucy Farquhar, Lova Chechik, Alexander Goodall, Abdallah Reza, Felix Hofmann, Iain Todd, Russell Goodall |
| On-Site Speaker (Planned) |
Lucy Farquhar |
| Abstract Scope |
In recent years, novel alloys have been designed specifically for Additive Manufacturing (AM), optimising microstructures and mechanical properties. Refractory High entropy alloys (HEAs) have also been shown to exhibit stable microstructures and good mechanical properties at high temperatures when manufactured using AM.
In this work an assessment of weldability is proposed to ascertain the suitability of novel refractory HEAs for AM, using small arc-melted samples, prior to any powder manufacture. This results in a method to assess if an alloy will be able to be manufactured by AM without cracking, before the costly step of producing powder and completing the AM process itself. Weld Tracks and modelling were completed on known HEAs as well as novel refractory HEAs, to ascertain crack susceptibility. The novel TiVNbMo-based HEA resulting from this modelling, is then successfully manufactured using laser powder bed fusion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Entropy Alloys, |