Abstract Scope |
Concentrated solid-solution alloys (CSAs), as a new type of alloys, have shown great potential for radiation-tolerant structural materials. However, the mechanical properties of the irradiated CSAs are less explored due to the limited volume of the irradiated region. Nanoindentation is a unique technique to probe surface properties at the micrometer and sub-micrometer scales in a high-throughput manner, accompanied by challenges from indentation size effect, pile-up/sink-in effect, and strain rate sensitivity. In this talk, Ni-based CSAs consisting of 3d transition metal elements including Co, Cr, Mn, and Fe will be studied, including unique single-crystal Ni, NiCo, NiFe, Ni80Cr20, and NiCoFeCr samples with (100) surfaces. The influence of radiation dose and different elements will be investigated through nanoindentation and nanoindentation strain rate jump tests. |