About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Investigation of Process Parameters to Fabricate TiWMo Refractory Medium Entropy Alloy via Selective Laser Melting on Different Substrate Materials |
Author(s) |
Lindsey Salazar, Abdullah Al Masum Jabir, James Li |
On-Site Speaker (Planned) |
Lindsey Salazar |
Abstract Scope |
Refractory medium entropy (RMEA) alloy (TiWMo) was fabricated by selective laser melting (SLM) process from elemental powder on different substrates (steel, titanium and tungsten). The results indicate that titanium substrate successfully formed TiWMo alloy. While other substrate showed some brittle nature during fabrication. With the highest energy density 350 j/mm3, the calculated porosity was lowest. Scanning electron microscope (SEM) showed less unmelted tungsten with increasing energy density. Design of experiment (DoE) analysis presents that scanning speed has little more contribution to have less porosity and unmelted tungsten than laser power. Single phase BCC solid solution was observed by XRD. Highest microhardness 633HV was achieved at highest energy density 350 j/mm3. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |