Fabrication of simulated plate fuel elements: Defining role of stress relief annealing

This study involved fabrication of simulated plate fuel elements. Uranium silicide of actual fuel elements was replaced with yttria. The fabrication stages were otherwise identical. The final cold rolled and/or straightened plates, without stress relief, showed an inverse relationship between bond s...

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Bibliographic Details
Published inJournal of nuclear materials Vol. 447; no. 1-3; pp. 150 - 159
Main Authors Kohli, D., Rakesh, R., Sinha, V.P., Prasad, G.J., Samajdar, I.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.04.2014
Elsevier
Subjects
Applied sciences
Energy
Exact sciences and technology
Fuels
Nuclear fuels
Preparation and processing of nuclear fuels
AA
TD
RD
OIM
GIXRD
ASTM
ND
XEC
FEG
SEM
EBSD
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Summary:This study involved fabrication of simulated plate fuel elements. Uranium silicide of actual fuel elements was replaced with yttria. The fabrication stages were otherwise identical. The final cold rolled and/or straightened plates, without stress relief, showed an inverse relationship between bond strength and out of plane residual shear stress (τ13). Stress relief of τ13 was conducted over a range of temperatures/times (200–500°C and 15–240min) and led to corresponding improvements in bond strength. Fastest τ13 relief was obtained through 300°C annealing. Elimination of microscopic shear bands, through recovery and partial recrystallization, was clearly the most effective mechanism of relieving τ13.
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.2014.01.002