Violation of the sequence of martensite crystals formation on cooling and their shrinking on heating during B2 ↔ B19′ martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5shape-memory alloy

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Abstract

? 2016 Informa UK Limited, trading as Taylor & Francis GroupAn in situ transmission electron microscopy study of the B2 ? B19? martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy was carried out. It was observed that the sequence of the martensite crystals shrinking on heating differed from the sequence of the martensite crystal appearance on previous cooling. This was shown that strain nanodomain formation on cooling prior to the forward martensitic transformation resulted in accumulation of the elastic energy. This led to the dependences of the elastic energy stored on cooling or released on heating on the volume fraction of the martensite phase became different. In this case, at the same volume fraction of the martensite phase, the configuration of the martensite crystals on cooling and heating was different and it was a reason for a violation of the sequence of the martensite crystal formation on cooling and its shrinking on heating.
Original languageEnglish
Pages (from-to)289-298
Number of pages10
JournalPhase Transitions
Volume90
Issue number3
DOIs
StatePublished - 2017

Keywords

    Scopus subject areas

    • Materials Science(all)

    Cite this

    @article{4f8a3e4666a24c97a0477f6760c6963c,
    title = "Violation of the sequence of martensite crystals formation on cooling and their shrinking on heating during B2 ↔ B19′ martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5shape-memory alloy",
    abstract = "? 2016 Informa UK Limited, trading as Taylor & Francis GroupAn in situ transmission electron microscopy study of the B2 ? B19? martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy was carried out. It was observed that the sequence of the martensite crystals shrinking on heating differed from the sequence of the martensite crystal appearance on previous cooling. This was shown that strain nanodomain formation on cooling prior to the forward martensitic transformation resulted in accumulation of the elastic energy. This led to the dependences of the elastic energy stored on cooling or released on heating on the volume fraction of the martensite phase became different. In this case, at the same volume fraction of the martensite phase, the configuration of the martensite crystals on cooling and heating was different and it was a reason for a violation of the sequence of the martensite crystal formation on cooling and its shrinking on heating.",
    keywords = "Martensite transformations, in situ electron microscopy, shape memory alloys, strain nanodomains",
    author = "Natalia Resnina and Sergey Belyaev and Alexander Shelyakov and Eugeniy Ubyivovk",
    year = "2017",
    doi = "10.1080/01411594.2016.1180517",
    language = "English",
    volume = "90",
    pages = "289--298",
    journal = "Phase Transitions",
    issn = "0141-1594",
    publisher = "Taylor & Francis",
    number = "3",

    }

    TY - JOUR

    T1 - Violation of the sequence of martensite crystals formation on cooling and their shrinking on heating during B2 ↔ B19′ martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5shape-memory alloy

    AU - Resnina, Natalia

    AU - Belyaev, Sergey

    AU - Shelyakov, Alexander

    AU - Ubyivovk, Eugeniy

    PY - 2017

    Y1 - 2017

    N2 - ? 2016 Informa UK Limited, trading as Taylor & Francis GroupAn in situ transmission electron microscopy study of the B2 ? B19? martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy was carried out. It was observed that the sequence of the martensite crystals shrinking on heating differed from the sequence of the martensite crystal appearance on previous cooling. This was shown that strain nanodomain formation on cooling prior to the forward martensitic transformation resulted in accumulation of the elastic energy. This led to the dependences of the elastic energy stored on cooling or released on heating on the volume fraction of the martensite phase became different. In this case, at the same volume fraction of the martensite phase, the configuration of the martensite crystals on cooling and heating was different and it was a reason for a violation of the sequence of the martensite crystal formation on cooling and its shrinking on heating.

    AB - ? 2016 Informa UK Limited, trading as Taylor & Francis GroupAn in situ transmission electron microscopy study of the B2 ? B19? martensitic transformation in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy was carried out. It was observed that the sequence of the martensite crystals shrinking on heating differed from the sequence of the martensite crystal appearance on previous cooling. This was shown that strain nanodomain formation on cooling prior to the forward martensitic transformation resulted in accumulation of the elastic energy. This led to the dependences of the elastic energy stored on cooling or released on heating on the volume fraction of the martensite phase became different. In this case, at the same volume fraction of the martensite phase, the configuration of the martensite crystals on cooling and heating was different and it was a reason for a violation of the sequence of the martensite crystal formation on cooling and its shrinking on heating.

    KW - Martensite transformations

    KW - in situ electron microscopy

    KW - shape memory alloys

    KW - strain nanodomains

    UR - http://www.mendeley.com/research/violation-sequence-martensite-crystals-formation-cooling-shrinking-heating-during-b2-b19-martensitic

    U2 - 10.1080/01411594.2016.1180517

    DO - 10.1080/01411594.2016.1180517

    M3 - Article

    VL - 90

    SP - 289

    EP - 298

    JO - Phase Transitions

    JF - Phase Transitions

    SN - 0141-1594

    IS - 3

    ER -