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Meeting MS&T21: Materials Science & Technology
Symposium Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments
Presentation Title Tensile Performance of Diffusion Bonded AA6061-AA6061 Cladding-Cladding Interface for Application in U-10Mo Monolithic Fuel Plates
Author(s) Abhishek Mehta, Jeongmin Woo, Jeffrey J Giglio, Jan-Fong Jue, Dennis D Keiser, James I Cole, Yongho Sohn
On-Site Speaker (Planned) Abhishek Mehta
Abstract Scope The AA6061 claddings produced by hot isostatic pressing is an important structural component of the high performance, monolithic U-10Mo fuel system for research and test reactors. In this study, mechanical integrity of diffusion bonded AA6061 alloys were examined. Solid-to-solid diffusion bonding was performed by annealing two AA6061 alloys at 560 C for 1.5 h, and subsequently cooled via three different cooling methods: furnace cooling, air cooling, and water quenching. Dog-bone shaped tensile specimens, with ~ 10 mm in gauge length and 1.5 mm in thickness, were fabricated from the diffusion couples by electro-discharge machining. Yield strength (%EL at failure) of furnace cooled, air cooled and water quenched specimens determined was 82-89 (10-30%), 112-116 (10-14%), and 149-164 (10-17%) MPa, respectively. The variation in mechanical behavior was interpreted with respect to microstructural development associated with precipitation of Mg2Si at the diffusion bonded interface during cooling with the aid of time-temperature-transformation diagram.
Proceedings Inclusion? Undecided

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Speciation of Metal Ion Solutes in Molten Salt Matrices for Reactor Applications using Advanced Spectroscopy Techniques
Successful, Unsuccessful, and Partially-successful Attempts at Understanding Alloy Corrosion in Molten Salts
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