|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Corrosion in Heavy Liquid Metals for Energy Systems
||Lead Bismuth Eutectic Corrosion on Austenitic Stainless Steel
||Peter Hosemann, Konstanza Lambrinou, David Frazer, Erich Stergar
|On-Site Speaker (Planned)
Austenitic stainless steels are among the candidate alloys for Lead Bismuth Eutectic Cooled reactors. As with all steels it is essential that a specific oxygen level must be kept in order to form a passivation film. This work shows examples of low oxygen level and high oxygen level materials corrosion performance. TEM and STEM are deployed to reveal the effects LBE corrosion has on austenitic stainless steels. We find that leaching of Nickel into the LBE is observed under all circumstances and change the underlying material as much as the oxide layers formed. Furthermore, we find that grain boundaries, twin interfaces are presenting fast diffusion paths accelerating the materials degradations.
||Nuclear Materials, Energy Conversion and Storage, Environmental Effects