|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||The Design of Reduced Activation Damage Resistant High-entropy Alloys for Next-generation Nuclear Systems
||Ed Pickering, Alex Carruthers, Bo-Shiuan Li, Jason Burnap, R Mythili, Chanchal Ghosh, C David, A Saikumaran, Raghvendra Tewari, Arup Dasgupta, Angus Wilkinson, David Armstrong, Amy Gandy
|On-Site Speaker (Planned)
A potential future application of HEAs is as structural materials for advanced next-generation fission and fusion reactors, where both high temperatures and high levels of neutron irradiation are likely to be experienced. The majority of the alloys we commonly use for high-temperature structural applications, such as nickel base superalloys, are unsuitable for advanced nuclear reactor environments for two reasons: first, because they often possess an FCC crystal structure, which is susceptible to irradiation swelling, and second, because they tend to comprise significant concentrations of elements that activate strongly when irradiated and stay activated for very long periods of time. In this presentation, we discuss the design strategy and initial investigation of a number of low-activation HEAs that have been produced and analysed as part of collaboration between partners in the UK and India. Alloy microstructures, characterised using advanced high-resolution microscopy techniques, are compared to those predicted using CALPHAD software.