| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2025
|
| Presentation Title |
Evaluating Microstructure and Strength Properties of Tungsten based Refractory Multi-Principal Element Alloy fabricated by Laser Based Directed Energy Deposition
|
| Author(s) |
Amaranth Karra, Bryan A. Webler |
| On-Site Speaker (Planned) |
Amaranth Karra |
| Abstract Scope |
Although tungsten (W) is known for its brittle nature at room temperature, recent advancements in additive manufacturing (AM) saw a surge in pursuing AM of W and W alloys. This study examines the printability and microstructure of a W-based Refractory Multi-Principal Element Alloy (RMPEA) fabricated via laser based - directed energy deposition (DED-LB). While microstructure was examined for porosity, cracking and micro-segregation, high temperature mechanical testing were performed for understanding the properties at extreme temperatures. Results show how alloying and process parameter selection can lead to reduction in defects during DED-LB of W based RMPEAs on cracking. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |