| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Development of W-Ti-Mo Refractory Medium Entropy Alloy via Selective Laser Melting for Extreme Environment Applications |
| Author(s) |
Lindsey Salazar, Jeongwoo Lee, Abdullah Al Masum Jabir, Jianzhi Li |
| On-Site Speaker (Planned) |
Lindsey Salazar |
| Abstract Scope |
High-temperature strength and high environmental resistance are necessary characteristics for materials under extreme working conditions in aerospace, nuclear, and chemical industries. In this study, a novel refractory medium entropy alloy (MEA) was developed from tungsten (W), titanium (Ti), and molybdenum (Mo) via an additive manufacturing process, selective laser melting (SLM). Through process optimization, (i) the formation of brittle intermediate phases was suppressed, (ii) the complete melting of tungsten particles was achieved, and (iii) a pure solid solution was formed. Due to the addition of Ti and Mo, the resultant alloy showed outstanding high-temperature strength compared to other tungsten alloys. The effects of process parameters on the mechanical properties were analyzed to understand the characteristics of complex layer-by-layer structures. The feasibility of manufacturing defect-less refractory MEA composed of a solid solution phase delivers high potentials of laser-based additive manufacturing in functional material development. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Other |