|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||Microstructural Evaluation of Ion Irradiated Model Binary Alloys
||Ling Wang, Steve J. Zinkle
|On-Site Speaker (Planned)
Phase stability of nanoscale precipitates is of key importance for the design of radiation resistant materials, yet relatively little fundamental information is available regarding the role of particle size, coherency and composition on dynamic stability during irradiation. In order to provide initial information on the ballistic stability of different types of precipitates, two copper-base binary alloys (1%Co, 1%Fe), two nickel-base alloys (0.8%Zr, 0.8%Hf) and two iron-base alloys (1%Cu, 1%Zr) were heat treated to produce coherent precipitates, and then irradiated with 1MeV Ni ions to intermediate doses of 1dpa at room temperature and 350C.
The microstructure was characterized using cross-section transmission electron microscopy. Information will be summarized regarding the evolution of the precipitate size and density as a function of the irradiation dose and precipitate type, and the effect of precipitate sink strength on the evolution of defect clusters such as dislocation loops will also be summarized.
||Planned: Supplemental Proceedings volume