| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
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| Symposium
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Methods, Techniques, and Materials Discovery of Irradiation Effect Using In-situ Microscopy
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| Presentation Title |
Advanced In Situ Mechanical Testing Approaches to Evaluate the Degradation of Nuclear System Components |
| Author(s) |
Maxim Gussev, David McClintock, Kevin Field, Ercan Cakmac, Travis Dixon |
| On-Site Speaker (Planned) |
Maxim Gussev |
| Abstract Scope |
In the recent two decades, common mechanical testing techniques showed significant progress, being coupled with advanced tools like EBSD. The present work combines own authors’ results and a limited literature review to discuss the advantages, challenges, and limitations of several advanced experimental approaches for testing irradiated specimens. In-house manufacturing of irradiated specimens is described in detail. Among the discussed experimental techniques of special focus are:
(1) SEM/EBSD, allowing for investigating strain-induced phenomena, like lattice rotation, twinning, phase instability, and cracking;
(2) Digital image correlation (DIC) with focus on in-SEM applications (µDIC). Examples are given, including a technique based on imaging radiation-induced voids via BSE contrast;
(3) High-resolution EBSD (HR-EBSD). The approach relies on an in-depth analysis of diffraction patterns to retrieve in-grain stresses and local dislocation densities;
(4) In-situ X-ray tomography, allowing for detecting and tracking pores, cracks, and discontinuities in the specimen volume. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Mechanical Properties, Other |