The influence of heat treatment on the magnetic and phase transformation properties of quaternary heusler alloy ni50mn8fe 1750ga25 ribbons

Z. H. Liu*, J. L. Chen, H. N. Hu, M. Zhang, X. F. Dai, Zhiyong Zhu, G. D. Liu, G. H. Wu, F. B. Meng, Y. X. Li

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Scopus citations

    Abstract

    Quaternary Heusler alloy Ni50Mn8Fe 17Ga25 has been synthesized by melt-spinning method. Pole figure examination suggested that the ribbon samples have a strong preferentially orientation in [400] about 5-10° tilted from the ribbon normal. The effect of heat treatment on the magnetic and phase transformation properties of Ni50Mn8Fe17Ga25 ribbon has been investigated. Annealing increased the martensitic transformation temperature, Curie temperature and decreased the transformation hysteresis and magnetic hysteresis due to the change of atomic chemical ordering. Thermoelastic transformation strain was decreased from -0.19% to -0.17% after annealing. At the same time, a slighter decrease of transformation strain by adding external bias field was observed in the as-annealed ribbons, which has not been found in the as-spun ribbons. These can be attributed to the relaxation of the internal stress through annealing.

    Original languageEnglish (US)
    Pages (from-to)1011-1015
    Number of pages5
    JournalScripta Materialia
    Volume51
    Issue number10
    DOIs
    StatePublished - Jan 1 2004

    Keywords

    • Annealing
    • Magnetism
    • Martensitic transformation
    • Melt-spun

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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