Fabrication of simulated plate fuel elements: Defining role of out-of-plane residual shear stress
Bond strength and microstructural developments were investigated during fabrication of simulated plate fuel elements. The study involved roll bonding of aluminum–aluminum (case A) and aluminum–aluminum+yttria (Y2O3) dispersion (case B). Case B approximated aluminum–uranium silicide (U3Si2) ‘fuel-mea...
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Published in | Journal of nuclear materials Vol. 445; no. 1-3; pp. 200 - 208 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.02.2014
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Bond strength and microstructural developments were investigated during fabrication of simulated plate fuel elements. The study involved roll bonding of aluminum–aluminum (case A) and aluminum–aluminum+yttria (Y2O3) dispersion (case B). Case B approximated aluminum–uranium silicide (U3Si2) ‘fuel-meat’ in an actual plate fuel.
Samples after different stages of fabrication, hot and cold rolling, were investigated through peel and pull tests, micro-hardness, residual stresses, electron and micro-focus X-ray diffraction. Measurements revealed a clear drop in bond strength during cold rolling: an observation unique to case B. This was related to significant increase in ‘out-of-plane’ residual shear stresses near the clad/dispersion interface, and not from visible signatures of microstructural heterogeneities. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-3115 1873-4820 |
DOI: | 10.1016/j.jnucmat.2013.11.005 |