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DOE OSTI · 1245521

Multiscale Multiphysics Developments for Accident Tolerant Fuel Concepts

Gamble, K. A.·Hales, J. D.·Yu, J.·Zhang, Y.·Bai, X.·Andersson, D.·Patra, A.·Wen, W.·Tome, C.·Baskes, M.·Martinez, E.·Stanek, C. R.·Miao, Y.·Ye, B.·Hofman, G. L.·Yacout, A. M.·Liu, W.
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Abstract

U 3 Si 2 and iron-chromium-aluminum (Fe-Cr-Al) alloys are two of many proposed accident-tolerant fuel concepts for the fuel and cladding, respectively. The behavior of these materials under normal operating and accident reactor conditions is not well known. As part of the Department of Energy’s Accident Tolerant Fuel High Impact Problem program significant work has been conducted to investigate the U 3 Si 2 and FeCrAl behavior under reactor conditions. This report presents the multiscale and multiphysics effort completed in fiscal year 2015. The report is split into four major categories including Density Functional Theory Developments, Molecular Dynamics Developments, Mesoscale Developments, and Engineering Scale Developments. The work shown here is a compilation of a collaborative effort between Idaho National Laboratory, Los Alamos National Laboratory, Argonne National Laboratory and Anatech Corp.

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALSAccident Tolerant FuelACCIDENT-TOLERANT NUCLEAR FUELSALUMINIUM ALLOYSBISONCHROMIUM ALLOYSDENSITY FUNCTIONAL METHODDensity Functional TheoryFuel PerformanceIRON BASE ALLOYSMolecular DynamicsMOLECULAR DYNAMICS METHODRADIATION HARDENINGSTRAINSSTRESSESSWELLINGTERNARY ALLOY SYSTEMSURANIUM SILICIDES

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Gamble, K. A., Hales, J. D., Yu, J., Zhang, Y., Bai, X., Andersson, D., Patra, A., Wen, W., Tome, C., Baskes, M., Martinez, E., Stanek, C. R., Miao, Y., Ye, B., Hofman, G. L., Yacout, A. M., Liu, W.. 2015-09-01. Multiscale Multiphysics Developments for Accident Tolerant Fuel Concepts. https://doi.org/10.2172/1245521

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