| Abstract Scope |
High plant availability requirements and extreme operational conditions in future nuclear fusion reactors require the use of refractory materials such as W with attractive high temperature properties. Radiation induced effects, including transmutation, product precipitation, void formation, and dislocation loop formation, tend to degrade these attractive properties. New alloys, including some High Entropy Alloys (HEAs), have exhibited potentially useful properties. The wide compositional phase space in ternary, quaternary, and quinary alloys, combined with the large number of parameters associated with neutron irradiation make screening candidate materials extremely challenging. Rapid experimental screening of prototype alloys can accelerate the design, discovery, and development of potentially revolutionary new materials for use in fusion reactors. In this project, we aim to accelerate the initial stage of alloy development, by using composition-spread films and heavy-ion irradiation to quickly identify alloys that exhibit superior radiation tolerance using novel high-throughput techniques, such as transient grating spectroscopy. |