| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
|
| Presentation Title |
Micropillar Compression Testing of Proton Irradiated NiCr2 Alloy |
| Author(s) |
Chaitanya Peddeti, Andrew Scott |
| On-Site Speaker (Planned) |
Chaitanya Peddeti |
| Abstract Scope |
How radiation affects the micro-mechanical properties of metals is crucial to study as it provides avenues to parameterize radiation damage, as well as add to the existing database of radiation effects on metals. SRIM was used to calculate the penetration
depth of protons into NiCr2 to ensure samples were fabricated in the radiation zone. EBSD was used to determine grain orientation and location within the radiation zone. Micropillars were fabricated using a Focused Ion Beam within a singular grain. Mechanical properties were measured with in-situ SEM compression tests to measure hardness. At 1.5 DPA proton irradiation,
we noticed an increase in hardness of the alloy and decrease in strain that led to failure. The increased hardness and values observed in the irradiated sample is evidence of radiation hardening due to increased defect concentration, and the decreased strain-to-failure value is
evidence of decrease in ductility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Nuclear Materials, Copper / Nickel / Cobalt |