Microstructural evolution during gaseous hydrogen charging of Zircaloy-4 processed by high-pressure torsion: a comparative study

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dc.contributor.authorWang, ZYen_AU
dc.contributor.authorLi, HJen_AU
dc.contributor.authorGarbe, Uen_AU
dc.contributor.authorCallaghan, MDen_AU
dc.contributor.authorWang, Yen_AU
dc.contributor.authorLiao, XZen_AU
dc.date.accessioned2013-10-03T02:12:02Zen_AU
dc.date.available2013-10-03T02:12:02Zen_AU
dc.date.issued2012-02-01en_AU
dc.date.statistics2013-10-03en_AU
dc.description.abstractThe original and high-pressure torsion (HPT) processed Zircaloy-4 materials were hydrided using gaseous hydrogen charging at different hydrogen pressures (10, 15 and 20 atm). The phase and microstructural evolutions of the samples during hydriding were characterized. It showed that when hydriding at the identical conditions, more hydrides tended to form in the HPT samples compared to that of the original ones. At a hydrogen pressure of 20 atm, the HPT sample was completely converted to epsilon-ZrH2 while some delta-ZrH1.66 hydrides (volume fraction similar to 5.73%) were present in the material without HPT preprocessing. The HPT samples exhibited high potential for the hydride precipitation, and the large concentration of lattice defects induced by HPT was considered to be responsible for this enhanced susceptibility. © 2011 Elsevier B.V.en_AU
dc.identifier.citationWang, Z., Li, H. J., Garbe, U., Callaghan, M. D., Wang, Y. B., & Liao, X. (2012). Microstructural evolution during gaseous hydrogen charging of Zircaloy-4 processed by high-pressure torsion: a comparative study. Materials Letters, 68, 310-313. doi:10.1016/j.matlet.2011.10.098en_AU
dc.identifier.govdoc5135en_AU
dc.identifier.issn0167-577Xen_AU
dc.identifier.journaltitleMaterials Lettersen_AU
dc.identifier.pagination310-313en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.matlet.2011.10.098en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4757en_AU
dc.identifier.volume68en_AU
dc.language.isoenen_AU
dc.publisherElsevier B.V.en_AU
dc.subjectHydridesen_AU
dc.subjectNucleationen_AU
dc.subjectPrecipitationen_AU
dc.subjectCrystal defectsen_AU
dc.subjectMicrostructureen_AU
dc.subjectZircaloy 4en_AU
dc.titleMicrostructural evolution during gaseous hydrogen charging of Zircaloy-4 processed by high-pressure torsion: a comparative studyen_AU
dc.typeJournal Articleen_AU
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