About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
TMS Frontiers of Materials Award Symposium: Surface Engineering for Nuclear Energy: An Additive Manufacturing Perspective
|
| Presentation Title |
Oxide-Dispersion-Strengthened (ODS) SS 316L for Additive Manufacturing: Synthesis, Fabrication and Novel Properties |
| Author(s) |
Zhichao Liu, Manikanta Grandhi |
| On-Site Speaker (Planned) |
Zhichao Liu |
| Abstract Scope |
Synthesis of oxide dispersion-strengthened (ODS) SS316L with homogeneously dispersed oxide nanoparticles via additive manufacturing is garnering heightened interest, with the primary challenge being the development of optimized ODS powder precursors. This study presents a novel mechano-chemical bonding (MCB) technique for producing spheroidal SS316L powder encapsulating nanoscale yttrium oxide (Y2O3) particles, preserving enhanced packing density and rheological properties suitable for directed energy deposition (DED). Microstructural and mechanical characterization of DED-fabricated specimens was conducted using scanning electron microscopy (SEM), X-ray diffractometry (XRD), transmission electron microscopy (TEM), micro indentation, and uniaxial tensile testing. Results demonstrate successful synthesis of spheroidal ODS SS316L powder feedstock with embedded ultrafine oxide particles, exhibiting improved flowability and packing density. |