Number of the records: 1  

Structure development in Co.sub.38./sub.Ni.sub.33./sub.Al.sub.29./sub. ferromagnetic shape memory alloy

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    SYSNO ASEP0331332
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleStructure development in Co38Ni33Al29 ferromagnetic shape memory alloy
    TitleVývoj struktury ve feromagnetické slitině s tvarovou pamětí Co38Ni33Al29.
    Author(s) Kopeček, Jaromír (FZU-D) RID, ORCID
    Sedláková, Silvia (FZU-D) RID, ORCID
    Jurek, Karel (FZU-D) RID, ORCID, SAI
    Jarošová, Markéta (FZU-D) RID, ORCID
    Drahokoupil, Jan (FZU-D) RID, ORCID
    Šittner, Petr (FZU-D) RID, ORCID
    Novák, Vít (FZU-D) RID, ORCID
    Source TitleESOMAT 2009 - 8th European Symposium on Martensitic Transformations. - Les Ulis cedex A : EDP Sciences, 2009 / Šittner P. ; Paidar V. ; Heller L. ; Seiner H. - ISBN 978-2-7598-0480-1
    Pages02013/1-02013/5
    Number of pages5 s.
    ActionESOMAT 2009
    Event date07.09.2009-11.09.2009
    VEvent locationPraha
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryFR - France
    Keywordscobalt alloys ; ferromagnetic shape memory alloys ; crystal growth ; martensitic transformation
    Subject RIVBM - Solid Matter Physics ; Magnetism
    R&D ProjectsIAA200100627 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    IAA200100902 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    CEZAV0Z10100520 - FZU-D (2005-2011)
    AnnotationIn the present study, a set of the directionally solidified samples from ferromagnetic shape memory alloywith the nominal composition Co38Ni33Al29 was prepared using the Bridgman method. It is shown that various growth rates result in various solidification structures of the crystals, mainly in different ratios of the disordered phase  - cobalt solid solution and the ordered phase  - B2 (Co,Ni)Al. This ratio has the fundamental effect on the temperature of the martensitic phase transition. The results are compared with the structure of samples prepared by the floating zone method. The structures of samples prepared with the different growth rate were studied by metallography, SEM, EDX, and EBSD methods. The samples without high-angle grain boundaries were cut from the prepared crystals for the mechanical testing.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2010
Number of the records: 1  

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