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Thermal stability and nanocrystallization of Zr-Ti-Ni-Cu-Be bulk metallic glass

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dc.contributor.authorWang, Gang
dc.contributor.authorShen, J.
dc.contributor.authorSun, J. F.
dc.contributor.authorZhou, B. D.
dc.contributor.authorLlewellyn, David
dc.contributor.authorFitz Gerald, John
dc.contributor.authorStachurski, Zbigniew
dc.date.accessioned2015-12-13T22:53:02Z
dc.date.available2015-12-13T22:53:02Z
dc.date.issued2005
dc.date.updated2015-12-11T10:54:16Z
dc.description.abstractThe evolution of the microstructure of a Zr41.25Ti13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass during isothermal annealing in the supercooled liquid region is studied by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and transmission electron microscopy (TEM). At the annealing temperature of 383°C, the DSC trace of BMG exhibits three exothermic peaks indicating three crystallization stages. The crystallization activation energies on various crystallization stages are evaluated to be 148±10, 285±10 and 199±10 kJ/mol, respectively. The first stage crystallization of nanocrystals, recognised in DSC and TEM, probably involves icosahedral phase. In the second stage, the TEM and XRD data show the formation of Zr2Cu and ZrBe2 phases. The third stage is not yet fully characterized.
dc.identifier.issn1447-6738
dc.identifier.urihttp://hdl.handle.net/1885/81655
dc.publisherInstitute of Materials Engineering Australasia
dc.sourceMaterials Forum
dc.source.urihttp://www.materialsaustralia.com/Materials_Forum/Vol29/GP%2096.pdf
dc.subjectKeywords: Activation energy; Annealing; Crystal microstructure; Crystallization; Differential scanning calorimetry; Isotherms; Metallic glass; Nanostructured materials; Thermodynamic stability; Transmission electron microscopy; X ray diffraction analysis; Annealing
dc.titleThermal stability and nanocrystallization of Zr-Ti-Ni-Cu-Be bulk metallic glass
dc.typeJournal article
local.bibliographicCitation.lastpage550
local.bibliographicCitation.startpage546
local.contributor.affiliationWang, Gang, College of Engineering and Computer Science, ANU
local.contributor.affiliationShen, J, Harbin Institute of Technology
local.contributor.affiliationSun, J F, Harbin Institute of Technology
local.contributor.affiliationZhou, B D, Harbin Institute of Technology
local.contributor.affiliationLlewellyn, David, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationFitz Gerald, John, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationStachurski, Zbigniew, College of Engineering and Computer Science, ANU
local.contributor.authoruidWang, Gang, u4066383
local.contributor.authoruidLlewellyn, David, u7400676
local.contributor.authoruidFitz Gerald, John, u8001315
local.contributor.authoruidStachurski, Zbigniew, u9300839
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor091299 - Materials Engineering not elsewhere classified
local.identifier.ariespublicationMigratedxPub9949
local.identifier.citationvolume29
local.identifier.scopusID2-s2.0-24044464886
local.type.statusMetadata only

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