About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Nanostructured Materials in Extreme Environments
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Presentation Title |
Coupled Extreme Environments the True Challenge for Nuclear Materials |
Author(s) |
Peter Hosemann, Minsung Hong, Franziska Schmidt, Rasheed Auguste, John R. Scully, Ho Lun Chan, Farida Selim, Djamel Kaoumi |
On-Site Speaker (Planned) |
Peter Hosemann |
Abstract Scope |
Nuclear applications are among the most challenging environments for materials today. While radiation, high temperature, corrosive environments, stress, and long periods of performance are a challenge under any circumstance it is the simultaneous presence of all of it that creates the true challenge, makes materials selection difficult and leads to phenomena not observed elsewhere. This work assesses the effects of irradiation and corrosion at elevated temperature on model and engineering alloys and materials. Helium implanted material and corroded materials are explored and the combination of Helium bubble migration while oxide layer growth occurs are studied finding a strong influence of Kirkendall effects on the mechanism. A combinatorial study of positron annihilation spectroscopy and electrical impedance spectroscopy bring insight into the effects of radiation on pre-formed passive layers advancing our understanding of transport across interfaces. In addition, we highlight the simultaneous irradiation and corrosion of materials in lead bismuth eutectic and introduce a new in-situ corrosion rate measurement tool. |
Proceedings Inclusion? |
Planned: |