Intermartensitic transformation of Ni-Fe-Ga magnetic shape memory alloys | Zendy

Hongxing Zheng | Zendy; Jian Liu | Zendy; Xia Ming-Xu | Zendy; LI Jian-guo | Zendy

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Intermartensitic transformation of Ni-Fe-Ga magnetic shape memory alloys

Author(s) -

Hongxing Zheng,

Jian Liu,

Xia Ming-Xu,

LI Jian-guo

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.1719

Subject(s) - diffusionless transformation , materials science , shape memory alloy , monoclinic crystal system , transformation (genetics) , differential scanning calorimetry , magnetic shape memory alloy , diffraction , martensite , thermodynamics , condensed matter physics , crystallography , microstructure , metallurgy , magnetic field , crystal structure , magnetization , optics , magnetic domain , chemistry , physics , biochemistry , quantum mechanics , gene

Differential scanning calorimetry (DSC) and x-ray diffraction (XRD) have been used to probe the martensitic transformation behaviors of Ni-Fe-Ga magnetic shape memory alloys. A complete intermartensitic transformation was observed in polycrystallineNi56556.5Fe19019.0Ga2452 4.5和Ni56356.3Fe17017.0Ga2672 6.7 alloys, which is stimulated by the change of temperature and include s an intermartensitic transformation and the corresponding retransformation. The intermartensitic transformation and the martensitic transformation are both the rmoelastic and the martensitic phases existing at room temperature are character ized as a monoclinic 14M structure.

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