Observations on the zirconium hydride precipitation and distribution in zircaloy-4

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dc.contributor.authorWang, Zen_AU
dc.contributor.authorGarbe, Uen_AU
dc.contributor.authorLi, HJen_AU
dc.contributor.authorHarrison, RPen_AU
dc.contributor.authorKaestner, Aen_AU
dc.contributor.authorLehmann, EHen_AU
dc.date.accessioned2016-12-06T05:21:29Zen_AU
dc.date.available2016-12-06T05:21:29Zen_AU
dc.date.issued2014-05-14en_AU
dc.date.statistics2016-12-06en_AU
dc.description.abstractHydride precipitation and distribution in hot-rolled and annealed Zircaloy-4 plate samples artificially induced by gaseous hydrogen charging were studied primarily by neutron tomography, scanning electron microscopy (SEM), and SEM-based electron backscattered diffraction techniques. The precipitated hydride platelet (d-ZrH1.66) at a hydrogen pressure of 20 atm was found following the {111}d-ZrH1.66//(0001)a-Zr with the surrounding a-Zr matrix. The microstructural characterization indicated that hydrides with a relatively uniform distribution were precipitated on the rolling-transverse section of the plate, whereas, on the normal-transverse section, a hydride concentration gradient was present with a dense hydride layer near the surface. Further, the neutron tomography investigations clearly identified the nonuniform spatial distribution of hydrides. Thin hydride layers preferentially formed on the sample surface, and the concentrated hydrides precipitating at the edges/corner of the sample were observed. The causes for the localized hydride accumulation werealso discussed. © 2014, The Minerals, Metals & Materials Society and ASM International 2013.en_AU
dc.identifier.citationWang, Z., Garbe, U., Li, H., Harrison, R. P., Kaestner, A., & Lehmann, E. (2014). Observations on the zirconium hydride precipitation and distribution in zircaloy-4. Metallurgical and Materials Transactions B, 45(2), 532-539. doi:10.1007/s11663-013-9866-0en_AU
dc.identifier.govdoc7669en_AU
dc.identifier.issn1543-1916en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleMetallurgical and Materials Transactions Ben_AU
dc.identifier.pagination532-539en_AU
dc.identifier.urihttp://dx.doi.org/10.1007/s11663-013-9866-0en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8124en_AU
dc.identifier.volume45en_AU
dc.language.isoenen_AU
dc.publisherSpringer Linken_AU
dc.subjectHydridesen_AU
dc.subjectZircaloyen_AU
dc.subjectElectron microscopyen_AU
dc.subjectHydrogenen_AU
dc.subjectNeutronsen_AU
dc.subjectSpatial distributionen_AU
dc.titleObservations on the zirconium hydride precipitation and distribution in zircaloy-4en_AU
dc.typeJournal Articleen_AU
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