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dc.contributor.authorWang, Z-
dc.contributor.authorGarbe, U-
dc.contributor.authorLi, HJ-
dc.contributor.authorHarrison, RP-
dc.contributor.authorKaestner, A-
dc.contributor.authorLehmann, EH-
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.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.publisherSpringer Linken_AU
dc.subjectElectron microscopyen_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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