| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Materials Corrosion Behavior in Advanced Nuclear Reactor Environments II
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| Presentation Title |
Impact of Oxidation and Helium Irradiation-Induced Defects in Fe-18Cr Samples
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| Author(s) |
Mira Khair, Santiago De Stefano Cavazos, Valeria Cantu Vessi, Shakira Medellin, Blas Pedro Uberuaga, Peter Hosemann, Elizabeth Sooby |
| On-Site Speaker (Planned) |
Mira Khair |
| Abstract Scope |
This study presents the impact of oxidation on defects induced by helium irradiation and the influence of these defects on the oxidation process. Fe-18Cr samples were fabricated via arc melting, followed by heat treatment for homogenization. The experimental design involves high-temperature oxidation using O2 and H2O as oxidizing agents to observe their differential effects. Half of the samples were irradiated with helium before oxidation, while the other half were irradiated after oxidation to evaluate the individual and combined effects of these parameters. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) have been employed to characterize the oxidation layer, chemical composition and segregation. Transmission electron microscopy (TEM) was used to analyze bubble formation and defect structures post-irradiation. The findings from this study provide valuable insights into the interplay between oxidation and irradiation-induced defects such as bubbles, voids and chemical segregation in Fe 18-Cr samples. |
| Proceedings Inclusion? |
Planned: |