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Specifics of Crystallization of Amorphous TiNiCu Alloys with High Concentrations of Copper

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dc.contributor.authorKhabibullina, I. A.
dc.contributor.authorSundeev, R. V.
dc.contributor.authorShelyakov, A. V.
dc.contributor.authorSitnikov, N. N.
dc.contributor.authorSevryukov, O. N.
dc.contributor.authorШеляков, Александр Васильевич
dc.contributor.authorСитников, Николай Николаевич
dc.contributor.authorСеврюков, Олег Николаевич
dc.date.accessioned2024-11-26T14:12:52Z
dc.date.available2024-11-26T14:12:52Z
dc.date.issued2020
dc.description.abstract© 2020, Pleiades Publishing, Ltd.Abstract: Ribbons of alloys of the quasi-binary TiNi–TiCu system with 25, 30, 35, and 40 at % copper were fabricated by planar flow casting at a cooling rate of 106 K/s. The thickness of the ribbons was 30–50 μm, and their width was 10–20 mm. The structure and phase transformations of alloys were studied using electron microscopy, X-ray diffraction, and differential scanning calorimetry. It was found that the alloys with 25 and 30 at % Cu in the initial state have an amorphous-crystalline structure, which undergoes one-stage polymorphic crystallization of the amorphous state with the formation of austenitic phase B2 under heating in a calorimeter. When cooled to room temperature, phase B2 undergoes a martensitic transformation to orthorhombic phase B19. It was demonstrated that the alloys with 35 and 40 at % Cu become amorphous when quenched and undergo two-stage (primary and eutectic) crystallization under heating. The resulting structure is two-phase (tetragonal phase B11 (TiCu) with a small fraction of phase B2). An increase in the concentration of copper leads to a reduction in the onset temperature of crystallization.
dc.format.extentС. 937-941
dc.identifier.citationSpecifics of Crystallization of Amorphous TiNiCu Alloys with High Concentrations of Copper / Khabibullina, I.A. [et al.] // Physics of the Solid State. - 2020. - 62. - № 6. - P. 937-941. - 10.1134/S1063783420060281
dc.identifier.doi10.1134/S1063783420060281
dc.identifier.urihttps://www.doi.org/10.1134/S1063783420060281
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85086236147&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000540164600002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/21918
dc.relation.ispartofPhysics of the Solid State
dc.titleSpecifics of Crystallization of Amorphous TiNiCu Alloys with High Concentrations of Copper
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.volume62
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