|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||High Entropy Alloys VI
||Radiation Effects in High Entropy Alloys Revealed by Atom Probe Tomography
||Jonathan Poplawsky, Wei Guo, Wei-Ying Chen, Rui Feng, Tengfei Yang, Haoyin Diao, Peter K. Liaw
|On-Site Speaker (Planned)
High-entropy alloys (HEAs) have become increasingly popular in the nuclear materials field because of their potentially superior radiation resistance. To better understand high entropy alloys (HEA) structure, composition, and property relationships before and after irradiation, nanostructures within HEAs need to be recognized. Atom probe tomography (APT) has been demonstrated to be a powerful tool for analyzing nano-scale three-dimensional (3D) atomic distributions and feature compositions with a superior sensitivity compared to analytical scanning transmission electron microscopy (STEM) techniques, which can be used to achieve this goal. A few HEA systems subject to deformation, heat treatments, and ion irradiation will be presented to show the advantages of using APT for studying HEAs. The information within the APT datasets can be used to better predict material properties for future alloy development. APT was conducted at ORNL's CNMS, which is a U.S. DOE Office of Science User Facility.
||Planned: Supplemental Proceedings volume