About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Industry
|
| Presentation Title |
Development of AM-HIP ODS 316L Stainless Steel with Tailored Oxide Distribution for Enhanced Resistance to Irradiation Assisted Stress Corrosion Cracking |
| Author(s) |
Arpan Arora, Abdullah Sinjlawi, Stephen S Raiman, Justin Warner, Sriram Vijayan |
| On-Site Speaker (Planned) |
Arpan Arora |
| Abstract Scope |
Oxide dispersion-strengthened 316L stainless steel was developed through an additive manufacturing route for Light Water Reactor Sustainability applications. Y₂O₃ nanoparticles (0.3, 0.5, and 1.0 wt.%) were uniformly dispersed onto 316L stainless steel powder using Resonant Acoustic Mixing, preserving powder morphology while avoiding contamination associated with mechanical alloying. Following fabrication, hot isostatic pressing was performed to reduce residual porosity and microstructural anisotropy while tailoring oxide dispersion through controlled microstructural evolution, promoting either intragranular or grain boundary oxide distributions.AM-HIP ODS microstructures and mechanical properties were systematically compared with conventionally AM 316L stainless steel and ODS 316L produced by the powder metallurgy HIP route to identify the optimum processing condition. The optimized alloy was subsequently evaluated by proton irradiation followed by four-point bending tests to assess irradiation-assisted stress corrosion cracking susceptibility. This work establishes processing–microstructure–property relationships and demonstrates the potential of post-build HIP to enhance irradiation tolerance for advanced LWRS structural materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Additive Manufacturing, Environmental Effects |