About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Development of Fe-Si Steel Powders for Additive Manufacturing |
Author(s) |
Lorena Perez, Nilesh Kumar |
On-Site Speaker (Planned) |
Lorena Perez |
Abstract Scope |
Alloys with additions of rare-earth materials have shown promising applications to produce components with high magnetic properties for electric vehicles. Nonetheless, the unstable supply of rare-earth minerals and their high cost have prompted to look for alternative alloys. Iron-silicon steels are a promising alternative owing to their excellent electromagnetic properties. The silicon content significantly influences the electrical properties. Traditionally, the silicon content in commercial Fe-Si steels is limited to 3.5 wt.%. Above this concentration, the ductility of Fe-Si alloys drops significantly, posing challenges for manufacturing by cold-rolling or hot-rolling. However, optimal magnetic properties are achieved at approximately 6.5wt% Si. We have produced Fe-6.5%Si powders via gas atomization and processed them by solid-state additive manufacturing and friction stir processing (FSP). In this study, we will present the findings regarding powder properties, including the electromagnetic properties, and the resultant properties of the additive manufacturing cold spray and FSP builds. |