|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Y-8: Room Temperature Au2+ Irradiation of Ni, Ni-Co and Ni-Fe Single Phase Alloys
||Taini Yang, Chenyang Lu, Ke Jin, Yanwen Zhang, Lumin Wang
|On-Site Speaker (Planned)
Three single phase solid solution alloys (SP-CSAs) including Ni, Ni-Co and Ni-Fe were studied to investigate defect dynamics without pre-existing sinks. The irradiation was conducted by ORNL using 3.0 MeV Au2+ ions at room temperature to three different fluences: 2E13, 1E14, and 5E15 cm-2. To distinguish the irradiation defects, a flash polishing technique was applied to remove the damage introduced by the focused ion beam sample preparation method. Analysis was performed with transmission electron microscopes, using bright field, two-beam condition and high angle annular dark field (HAADF) imaging modes. The corresponding relationship between damage depth, defect cluster size and distributions were characterized between the three materials and fluences. The preliminary result showed that defects travel deeper and have larger cluster size in Ni.
This work was supported by Energy Dissipation to Defect Evolution (EDDE), an Energe Research Frontier Center supported by the U.S. Department of Energy, Basic Energy Sciences.
||Planned: A print-only volume