|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Effect of Alloying Elements on Defect Evolution in Ni-20X Concentrated Binary Alloys
||Taini Yang, Chenyang Lu, Gihan Velisa, Ke Jin, Hongbin Bei, Yanwen Zhang, Lumin Wang
|On-Site Speaker (Planned)
Single-phase concentrated solid solution alloys (SP-CSAs), composed of two to five alloying elements (Ni, Co, Fe, Cr, Mn and Pd) in equiatomic ratios are the perfect models to investigate irradiation induced defect dynamics without pre-existing sinks. The purpose of this study is to determine the effect of individual alloying elements on the defect evolution in Ni-20X concentrated binary alloys at two elevated temperatures. Irradiation with 3 MeV Ni2+ ions up to damage levels of 60 dpa at 420℃ and 500℃ were performed at the Ion Beam Materials Lab (IBML) at University of Tennessee. The corresponding relationships between defect cluster size, type and distributions were characterized by transmission electron microscope (TEM). The primary result showed that void distributions are subject to different alloying elements, where the swelling suppression is stronger on alloys with larger lattice parameters. The dislocation loops exhibited a smaller average loop size as lattice parameter increased.
||Planned: Supplemental Proceedings volume