b'2019 | ANNUAL REPORTSelect ProjectREPORTST hrough its RTE and CINR calls for proposals, NSUF grants access to its facilities for researchers to conduct their studies to further the understanding of the effects of irradiation on nuclear fuels and materials. The following reports document findings resulting from these NSUF projects. Technical Report Understanding the Phase Transformation of Thermal Aged andNeutron Irradiated Duplex Stainless Steels Used in LWRs (16-10696) Yong Yang (University of Florida)Short Communications Characterization of Grain Boundaries of AlloyX-750 and SS 304 Irradiated in EBR-II (18-1254) Lingfeng He (Idaho National Laboratory)Characterization of Neutron-Irradiated Zr-1Nb-O UsingScanning Transmission Electron Microscopy (18-1374) Mahmut Cinbiz (Idaho National Laboratory)Study of Nb Redistribution in ZrNb Alloys Following ProtonIrradiation by Transmission Electron Microscopy with EnergyDispersive X-ray Spectrometry (18-1392) Zefeng Yu (University of Wisconsin)Radiation Damage in High Entropy Alloys (18-1394) Mohamed Elbakhshwan (University of Wisconsin)Characterization and Modeling of Secondary PhaseEvolution in an Irradiated Zr-1.0Nb Alloy (18-1400) Matthew Swenson (University of Idaho)Active Irradiation Testing of Temperature Sensing Capabilityof Clad Sapphire Optical Fibers with Type 2 Bragg Gratingsusing Optical Backscatter Reflectometry (18-1424) Christian Petrie (Oak Ridge National Laboratory)In-situ Small-scale Mechanical Testingof Fast Reactor Mixed Oxide Pins (18-1452) David Frazer (Los Alamos National Laboratory)High Fluence Irradiation Testing of Fiber Optic Material Transmission (18-1473) Thomas Blue (The Ohio State University)45'