| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Innovations in High Entropy Alloys and Bulk Metallic Glasses: An SMD & FMD Symposium in Honor of Peter K. Liaw
|
| Presentation Title |
Radiation Effects in High Entropy Alloys and Bulk Metallic Glasses |
| Author(s) |
Steven J. Zinkle, Congyi Li, Tengfei Yang, James Brechtl |
| On-Site Speaker (Planned) |
Steven J. Zinkle |
| Abstract Scope |
Particle irradiation is a useful tool to examine the phase stability of novel materials, due to the pronounced accelerated diffusion and atomic mixing phenomena that are induced by irradiation. Several high entropy alloys (HEAs) and bulk metallic glasses (BMGs) have been exposed to energetic heavy ion irradiation over a range of conditions ranging from room temperature to 700C and damage levels up to ~50 displacements per atom. Ion irradiation was observed to accelerate phase decomposition in some HEAs, but overall the investigated HEAs exhibited good resistance to microstructural degradation such as void swelling. The ion irradiated BMGs generally observed good phase stability (no radiation enhanced crystallization) and moderate changes in properties such as hardness and density up to ~0.8Tg where Tg is the absolute glass transition temperature. These observations will be compared with previously reported particle irradiation studies on HEAs and BMGs. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |