About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
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Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
ON DEMAND: The Combined Effect of Irradiation and Stress on Damage in a BCC CrMnFeV High-entropy Alloy |
Author(s) |
Hyosim Kim, Stuart Maloy, Jonathan Gigax, Osman El-Atwani |
On-Site Speaker (Planned) |
Hyosim Kim |
Abstract Scope |
High-entropy alloys (HEAs) have been widely studied for the past decade and have shown exceptional material properties (i.e. mechanical strength, corrosion and radiation tolerance). There is, however, a lack of coverage of HEAs subject to heavy ion/neutron irradiation to high damage levels (~200 dpa) and prototypic fast reactor environments. Furthermore, there are very few studies on the radiation response of transition metal body centered cubic (BCC) HEAs and even fewer investigating synergistic effects with radiation and other environments. In this study, the influence of tensile stress on the radiation-induced microstructural changes is investigated for BCC CrMnFeV HEA which has shown excellent mechanical properties. High dose ion irradiation (200 dpa) was conducted on the specimen at 500 °C with a tensile stress applied (50 % of yield strength) during irradiation. Post-irradiation characterization on microstructural changes such as void swelling, dislocation and grain morphologies will be presented. |
Proceedings Inclusion? |
Undecided |