About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
|
| Presentation Title |
Evaluating Microstructure and Strength Properties of a Tungsten Based 4-Component Multi
Principal Element Alloy Fabricated by Laser Based Directed Energy Deposition |
| Author(s) |
Amaranth Karra, Aditya Rohan Narra, Jeremy Watts, 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 microstructure of a W-based 4-component 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 bend tests were performed for understanding the mechanical 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. |