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dc.contributor.authorKocich, Radim
dc.contributor.authorKursa, Miroslav
dc.contributor.authorSzurman, Ivo
dc.contributor.authorDlouhý, Antonín
dc.date.accessioned2011-03-16T11:49:22Z
dc.date.available2011-03-16T11:49:22Z
dc.date.issued2011
dc.identifier.citationJournal of Alloys and Compounds. 2011, vol. 509, no. 6, p. 2716-2722.en
dc.identifier.issn0925-8388
dc.identifier.urihttp://hdl.handle.net/10084/84375
dc.description.abstractPresented paper describes the influence of imposed strain on the development of microstructure (substructure) in Ni–Ti materials during the application of ECAE (equal channel angular extrusion). The interrelationship between imposed strain and resulting transformation characteristics is in the main point of interest while the chemical composition, namely the occurrence of secondary phases such as TiC and Ti4Ni2O resulting from the technology used for the sample alloy preparation is also investigated. The alloy Ni50.6–Ti (at.%) was prepared by melting in the HF vacuum induction furnace using a graphite crucible. The deformation was carried out via ECAE combined with prior rotary forging/swaging. ECAE was carried out at 280 °C. The imposed strain had the value not, vert, similar2. The alloy was processed by deformation route Bc. It was established the high dislocation density generated by the imposed strain stabilized the B2 and R phases and shifted the transformation R ↔ B19′ towards the lower temperature region. Direct effect of the deformation stress was demonstrated in samples after the second pass when the occurrence of the deformation induced transformation B2 → B19′ was confirmed. Deformation induced transformation also represents contribution to the overall deformation of the samples during the process.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesJournal of Alloys and Compoundsen
dc.relation.urihttp://dx.doi.org/10.1016/j.jallcom.2010.12.003en
dc.subjectintermetallicsen
dc.subjectmetals and alloysen
dc.subjectshape memoryen
dc.subjectTEMen
dc.titleThe influence of imposed strain on the development of microstructure and transformation characteristics of Ni-Ti shape memory alloysen
dc.typearticleen
dc.identifier.locationNení ve fondu ÚKen
dc.identifier.doi10.1016/j.jallcom.2010.12.003
dc.identifier.wos000287058100019


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