About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
Presentation Title |
Effect of Minor Titanium and Aluminum Addition on Ductility of Refractory High Entropy Alloy |
Author(s) |
Surya T Bijjala, Pankaj Kumar |
On-Site Speaker (Planned) |
Surya T Bijjala |
Abstract Scope |
Refractory metal and alloys have been considered viable structural materials for high-performance engines operating at a very high temperature. The limited manufacturing due to poor ductility and fracture toughness of these materials is the major barrier to use. These characteristics of refractory metal and alloys are primarily due to interstitial impurity at grain boundaries. Alloy re-designing can improve the ductility and fracture toughness of refractory metal and alloys by reducing the GB sensitivity for interstitial elements. The present research is focused on single-phase refractory high entropy alloy (RHEA) MoVNbTaW-X, where X [= titanium (Ti), and aluminum (Al)]. The effect of Ti and Al addition on the ductility and strength both at room temperature and high temperature is rationalized in additively manufactured by powder metallurgy, MoVNbTaW RHEA. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, High-Temperature Materials, Additive Manufacturing |