|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors VII
||Advanced Manufacturing of HT9 Steel for Extreme Environments
||Niyanth Sridharan, Kevin Field, Maxim Gussev
|On-Site Speaker (Planned)
Advanced nuclear reactors require structural materials capable of withstanding higher radiation doses compared to the current generation of materials. HT-9 is a candidate material for harsh nuclear conditions due to it’s low swelling rates at typical advanced nuclear reactor conditions. However, processing HT-9 into complicated geometries using conventional manufacturing techniques can be costly and time consuming. Advanced manufacturing (AM), which has proven capabilities in other highly-regulated industries such as aerospace, could provide a means for rapid and cost-effective manufacturing of HT-9 for nuclear power applications. Here, we use an optimized directed energy deposition technique to fabricate HT-9 AM components and focus on evaluating the feasibility of using steels fabricated using AM for in-core reactor applications. The preliminary microstructural and mechanical characterization show significant promise in employing AM to fabricate HT-9 with materials properties similar to those fabricated using conventional techniques.
||Planned: Supplemental Proceedings volume