| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Emergent Materials under Extremes and Decisive In Situ Characterizations
|
| Presentation Title |
Understanding Surface Radiation Damage in Concentrated Solid-Solution Alloys by Nanoindentation |
| Author(s) |
Youxing Chen, Liuqing Yang, Yanwen Zhang, Nan Li |
| On-Site Speaker (Planned) |
Youxing Chen |
| Abstract Scope |
Concentrated solid-solution alloys (CSAs) are a new type of alloy material with good mechanical properties and excellent radiation resistance. For heavy ion irradiation studies on these alloys, traditional mechanical tests (e.g., tensile tests) cannot measure the properties due to limited volume. Nanoindentation is an ideal tool to characterize surface properties of heavy ion irradiated alloys. In this study, we will employ nanoindentation to investigate the radiation damage in a wide spectrum of irradiated Ni-based CSAs, including (a) single-phase single-crystal CSAs (e.g, NiCo, NiCoFeCr) in which microstructural effects are excluded and (b) dual-phase CSAs (CrFeMnNi and AlCrFeMnNi) in which phase boundaries are contributing to the radiation damage and deformation. The role of solid solution and microstructure to radiation damage, and the corresponding deformation mechanisms will be discussed. |