The mechanical response evaluation of advanced claddings during proposed reactivity initiated accident conditions

M. Nedim Cinbiz, Nicholas Brown, Kurt A. Terrani, Rick R. Lowden, Donald Erdman

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

This study investigates the failure mechanisms of advanced oxidation resistant FeCrAl nuclear fuel cladding at high-strain rates, similar to conditions characteristic of design basis reactivity initiated accidentReactivity initiated accidents (RIAs). During a postulated RIA, the nuclear fuel cladding may be subjected to complex loading which can cause multiaxial strain states ranging from plane-strain to equibiaxial tension. To achieve those accident conditions, the samples were deformed by the expansion of high strength Inconel alloy tube under pre-specified pressure pulses, simulating strains rates occurring in a postulated RIA. The mechanical response of the advanced claddings, in the unirradiated state with ample ductility, was compared to that of hydrided zirconium-based nuclear fuel cladding. The hoop strain evolution pulses were collected in situ; the permanent diametral strains of both accident tolerant fuelAccident-tolerant fuel (ATF) claddings and the current nuclear fuel alloys were determined after rupture. Both zirconium-based alloys and FeCrAl alloysFeCrAl alloys exhibited ductile behavior. FeCrAl model alloys without microstructural control and strengthening mechanism were used in this demonstration study that showed reduced diametral strain (less than 0.15) compared to the diametral strain for the unirradiated zirconium-based alloy (approximately 0.2).

Original languageEnglish
Title of host publicationMinerals, Metals and Materials Series
PublisherSpringer International Publishing
Pages355-365
Number of pages11
Edition9783319523330
DOIs
StatePublished - 2017

Publication series

NameMinerals, Metals and Materials Series
Number9783319523330
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Funding

This work was supported by the US Department of Energy Office of Nuclear Energy (DOE-NE) Advanced Fuels Campaign (AFC). The authors thank Daniel M. Wachs of Idaho National Laboratory for his oversight of this area. Authors are also thankful to Ken Yueh from Electric Power Research Institute for his useful insights during the construction of the mechanical test device. Also, we are thankful to Stephanie Curlin for profilometry, Aida Amroussia for SEM pictures, and Tom Geer and Sun Zhiqian for optical micrographs. Acknowledgements This work was supported by the US Department of Energy Office of Nuclear Energy (DOE-NE) Advanced Fuels Campaign (AFC). The authors thank Daniel M. Wachs of Idaho National Laboratory for his oversight of this area. Authors are also thankful to Ken Yueh from Electric Power Research Institute for his useful insights during the construction of the mechanical test device. Also, we are thankful to Stephanie Curlin for profilometry, Aida Amroussia for SEM pictures, and Tom Geer and Sun Zhiqian for optical micrographs.

FundersFunder number
DOE-NE
U.S. Department of Energy
Office of Nuclear Energy

    Keywords

    • Accident-tolerant fuel
    • FeCrAl alloys
    • High strain rate
    • Modified burst test
    • Reactivity initiated accident

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