Structural and microstructural phase evolution during mechano-synthesis of nanocrystalline/amorphous CuAlMn alloy powders

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buir.contributor.authorOkyay, Ali Kemal
dc.citation.epage1053en_US
dc.citation.issueNumber6en_US
dc.citation.spage1048en_US
dc.citation.volumeNumber24en_US
dc.contributor.authorAmini, R.en_US
dc.contributor.authorMousavizad, S. M. M.en_US
dc.contributor.authorAbdollahpour, H.en_US
dc.contributor.authorGhaffari, M.en_US
dc.contributor.authorAlizadeh, M.en_US
dc.contributor.authorOkyay, Ali Kemalen_US
dc.date.accessioned2015-07-28T12:03:45Z
dc.date.available2015-07-28T12:03:45Z
dc.date.issued2013-11en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe formation mechanism of Cu-11.5Al-4Mn alloys by mechanical alloying (MA) of pure elemental powders was investigated. During milling, the powder sampling was conducted at predetermined intervals from 1 h to 96 h. The quantitative phase analyses were done by X-ray diffraction and the particles size and morphology were studied by scanning electron microscopy. Furthermore, the microstructure investigation and phase identification were done by transmission electron microscopy. Concerning the results, the nanocrystalline Cu solid solution were formed at short milling times and, by milling evolution, the austenite-to-martensite (2H) phase transformation occurred. Moreover, the formation of considerable amount of amorphous phase and its partial transformation to crystalline phases during the milling process were revealed. It was also found that, by milling development, the powder morphology changes from lamellar to semi-spherical and their size initially increases, then reduces and afterward re-increases.en_US
dc.identifier.doi10.1016/j.apt.2013.03.005en_US
dc.identifier.issn0921-8831
dc.identifier.urihttp://hdl.handle.net/11693/12894
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.apt.2013.03.005en_US
dc.source.titleAdvanced Powder Technologyen_US
dc.subjectNanocrystalline/amorphous Materialsen_US
dc.subjectShape Memory Alloysen_US
dc.subjectCrystal Structureen_US
dc.subjectMicrostructureen_US
dc.subjectPhase Transformationen_US
dc.titleStructural and microstructural phase evolution during mechano-synthesis of nanocrystalline/amorphous CuAlMn alloy powdersen_US
dc.typeArticleen_US

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Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)