Time-dependent magnetostrain effect and stress relaxation in the martensitic phase of Ni-Mn-Ga

N.I. Glavatska, A.A. Rudenko, V.A. L'vov

    Research output: Contribution to journalArticleAcademicpeer-review

    22 Citations (Scopus)

    Abstract

    A simple theoretical model of the time-dependent magnetostrain effect in the Ni–Mn–Ga shape memory alloy is proposed. According to the model, a long-time response of the alloy to the magnetic field application is caused by the relaxation of field-induced mechanical stresses, and therefore, the field-induced strains depend exponentially on time. An agreement between the theoretical and experimental time dependencies of the field-induced strains is ascertained.
    Original languageEnglish
    Pages (from-to)287-291
    Number of pages5
    JournalJournal of Magnetism and Magnetic Materials
    Volume241
    Issue number2-3
    DOIs
    Publication statusPublished - 2002

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