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dc.contributor.authorGhadimi, M.en_US
dc.contributor.authorShokuhfar, A.en_US
dc.contributor.authorRostami H.R.en_US
dc.contributor.authorGhaffari, M.en_US
dc.date.accessioned2016-02-08T09:45:30Z
dc.date.available2016-02-08T09:45:30Z
dc.date.issued2012en_US
dc.identifier.issn0167577X
dc.identifier.urihttp://hdl.handle.net/11693/21382
dc.description.abstractNickel and Titanium elemental powders with a nominal composition Ni-50 at.%Ti were mechanical alloyed in a planetary high-energy ball mill in different milling conditions (5, 10, 20, 40 and 60 h). The investigation revealed that increasing milling time leads to a reduction in crystallite size, and after 60 h of milling, the Ti dissolved in Ni lattice and NiTi (B2) phase was obtained. With milling time, morphology of pre-alloyed powders changed from lamella to globular. Annealing of as-milled powders at 1173 K for 900 s led to formation of nanocrystalline NiTi (B19′), grain growth and release of internal strain. The results indicated that this technique is a powerful and high productive process for preparing NiTi intermetallic compound with nanocrystalline structure and appropriate morphology. © 2012 Elsevier B.V. All rights reserved.en_US
dc.language.isoEnglishen_US
dc.source.titleMaterials Lettersen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.matlet.2012.04.098en_US
dc.subjectElectron microscopyen_US
dc.subjectIntermetallic alloys and compoundsen_US
dc.subjectNanocrystalline materialsen_US
dc.subjectPhase transformationen_US
dc.subjectShape memory materialsen_US
dc.subjectX-ray techniquesen_US
dc.subjectAs-milled powdersen_US
dc.subjectElemental powdersen_US
dc.subjectHigh energyen_US
dc.subjectIntermetallic alloys and compoundsen_US
dc.subjectInternal strainsen_US
dc.subjectMilling conditionsen_US
dc.subjectMilling timeen_US
dc.subjectNano-crystalline NiTien_US
dc.subjectNano-crystalline structuresen_US
dc.subjectNanocrystallinesen_US
dc.subjectNominal compositionen_US
dc.subjectPre-alloyed powderen_US
dc.subjectProductive processen_US
dc.subjectShape-memory materialsen_US
dc.subjectStructural characterizationen_US
dc.subjectX-ray techniquesen_US
dc.subjectBall millsen_US
dc.subjectElectron microscopyen_US
dc.subjectGrain growthen_US
dc.subjectIntermetallicsen_US
dc.subjectMechanical alloyingen_US
dc.subjectMilling (machining)en_US
dc.subjectMorphologyen_US
dc.subjectNanocrystalline materialsen_US
dc.subjectPhase transitionsen_US
dc.subjectPowdersen_US
dc.subjectSoldering alloysen_US
dc.subjectTitaniumen_US
dc.subjectNanocrystalline powdersen_US
dc.titleEffects of milling and annealing on formation and structural characterization of nanocrystalline intermetallic compounds from Ni-Ti elemental powdersen_US
dc.typeArticleen_US
dc.departmentUNAM - Institute of Materials Science and Nanotechnology
dc.citation.spage181en_US
dc.citation.epage183en_US
dc.citation.volumeNumber80en_US
dc.identifier.doi10.1016/j.matlet.2012.04.098en_US


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