About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Microstructural Control in Materials Processing: Role of Phase Transformation Pathways
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| Presentation Title |
Advancing Nuclear Material Processing via Friction stir Consolidation and Layer Deposition |
| Author(s) |
Subhashish Meher, Tianhao Wang, Mohan Sai Kiran Kumar Yadav Nartu, David Garcia, Jorge dos Santos, Isabella van Rooyen |
| On-Site Speaker (Planned) |
Subhashish Meher |
| Abstract Scope |
The challenging conditions within nuclear environments necessitate materials with exceptional integrity and performance, driving innovation in processing routes. Friction Stir Processing (FSP), a solid-state technique, offers significant advantages over conventional melt-based methods. This presentation explores two key FSP derivatives: Friction Stir Consolidation (FSC) and Friction Stir Layer Deposition (FSLD), for processing of nuclear materials. FSC enabled the densification of A709 stainless steels and nickel-based IN617 chips into bulk forms, relevant for creating a pathway for novel alloys and consolidating recycled materials. FSLD leverages layer-by-layer deposition via friction stir principles to build or repair complex components, potentially offering pathways for fabricating reactor internals or cladding structures. In this work, multiple high entropy alloys have been processed into bulk structures by FSLD. By avoiding melting, these solid-state approaches minimize defects like porosity and segregation, enhance microstructural control, and show promise for joining dissimilar materials crucial for advanced reactor designs. |