| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Sustainable Metal Upcycling Using SolidStir Extrusion
|
| Author(s) |
Anurag Krishnakedar Gumaste, Austin Killam, Kameron Hightower, Ravi Sankar Haridas, Sandeep Patil, Takuro Iwata, Nanzhu Zhao, Rajiv S Mishra |
| On-Site Speaker (Planned) |
Anurag Krishnakedar Gumaste |
| Abstract Scope |
The urgency of reducing waste and minimizing environmental impact in manufacturing has driven advancements in metal recycling and upcycling. Traditional methods are often energy-intensive and complex. Therefore, developing greener technologies is crucial to lower the carbon footprint of manufacturing processes and benefit sustainable manufacturing, especially for automotive applications. One promising innovation is friction stir-based SolidStir® Extrusion (SSE). In this study, machined AA 356 chips were consolidated and recycled using SSE. The extrudates were examined to determine its density, microstructure, and distribution of Si-rich particles. Mechanical properties, including yield strength and ductility, were measured for both the as-extruded and heat-treated materials. The extruded AA 356 rods were fully dense with a fine, equiaxed average grain size of 3.2 ± 1.5µm. The Si- and Fe-rich particles were fragmented and uniformly distributed throughout the matrix, contributing to improved mechanical properties. The as-extruded material exhibited a yield strength of 224 MPa and 23% ductility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Recycling and Secondary Recovery, Sustainability |