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dc.contributor.authorLiss, Klaus-Dieter
dc.contributor.authorWhitfield, Ross E.
dc.contributor.authorXu, Wei
dc.contributor.authorBuslaps, T.
dc.contributor.authorYeoh, LaReine A.
dc.contributor.authorWu, Xiaolin
dc.contributor.authorZhang, Deliang
dc.contributor.authorXia, Kenong
dc.date.accessioned2010-07-09T02:17:49Z
dc.date.available2010-07-09T02:17:49Z
dc.date.issued2010
dc.identifier.citationLiss, K.-D., Whitfield, R.E., Xu, W., Buslaps, T., Yeoh, L.A.,…, Xia, K. (2010). In situ synchrotron high-energy X-ray diffraction analysis on phase transformations in Ti–Al alloys processed by equal-channel angular pressing. Journal of Synchrotron Radiation, 16(6), 825-834.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/4124
dc.description.abstractMixtures of 47-Al and 53-Ti powders (atomic %) have been consolidated using back pressure equal-channel angular pressing starting with both raw and ball-milled powders. In situ synchrotron high-energy X-ray diffraction studies are presented with continuous Rietveld analysis obtained upon a heating ramp from 300 K to 1075 K performed after the consolidation process. Initial phase distributions contain all intermetallic compounds of this system except Al, with distribution maxima in the outer regions of the concentrations (α-Ti, TiAl3). Upon annealing, the phase evolution and lattice parameter changes owing to chemical segregation, which is in favour for the more equilibrated phases such as γ-TiAl, α2-Ti3Al and TiAl2, were followed unprecedentedly in detail. An initial δ-TiH2 content with a phase transition at about 625 K upon heating created an intermediate β-Ti phase which played an important role in the reaction chain and gradually transformed into the final products.en_NZ
dc.language.isoen
dc.publisherWiley Blackwellen_NZ
dc.subjectTien_NZ
dc.subjectAlen_NZ
dc.subjectphase transformationen_NZ
dc.subjectphase equilibriaen_NZ
dc.subjectpowder metallurgyen_NZ
dc.subjectstructuralen_NZ
dc.subjectX-ray diffractionen_NZ
dc.titleIn situ synchrotron high-energy X-ray diffraction analysis on phase transformations in Ti–Al alloys processed by equal-channel angular pressingen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1107/S090904950903711Xen_NZ
dc.relation.isPartOfJournal of Synchrotron Radiationen_NZ
pubs.begin-page825en_NZ
pubs.elements-id35067
pubs.end-page834en_NZ
pubs.issue6en_NZ
pubs.volume16en_NZ


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