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Title: Multiscale Multiphysics Developments for Accident Tolerant Fuel Concepts

U3Si2 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 U3Si2 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.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3] ;  [4]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. ANATECH Corp., San Diego, CA (United States)
Publication Date:
OSTI Identifier:
1245521
Report Number(s):
INL/EXT--15-36761
TRN: US1601197
DOE Contract Number:
AC07-05ID14517
Resource Type:
Technical Report
Research Org:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; URANIUM SILICIDES; ACCIDENT-TOLERANT NUCLEAR FUELS; DENSITY FUNCTIONAL METHOD; CHROMIUM ALLOYS; IRON BASE ALLOYS; ALUMINIUM ALLOYS; MOLECULAR DYNAMICS METHOD; TERNARY ALLOY SYSTEMS; RADIATION HARDENING; STRESSES; STRAINS; SWELLING Accident Tolerant Fuel; BISON; Density Functional Theory; Fuel Performance; Molecular Dynamics