Magnetic Properties and Phase Diagram of Ni50Mn $$_{50-x}$$ 50 - x Ga $$_{x/2}$$ x / 2 In $$_{x/2}$$ x / 2 Magnetic Shape Memory Alloys

Ni50Mn50-xGax/2Inx/2 magnetic shape memory alloys were systematically prepared, and the magnetic properties as well as the phase diagram, including atomic ordering, martensitic and magnetic transitions, were investigated. The B2–L21 order–disorder transformation showed a parabolic-like curve against...

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Bibliographic Details
Published in:Shape memory and superelasticity : advances in science and technology 2016-12, Vol.2 (4), p.371-379
Main Authors: Xu, Xiao, Yoshida, Yasuki, Omori, Toshihiro, Kanomata, Takeshi, Kainuma, Ryosuke
Format: Article
Language:English
Subjects:
Composition
Curie temperature
Magnetic alloys
Magnetic properties
Magnetic transitions
Magnetism
Martensite
Martensitic transformations
Nickel base alloys
Phase diagrams
Shape memory alloys
Transformation temperature
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Summary:Ni50Mn50-xGax/2Inx/2 magnetic shape memory alloys were systematically prepared, and the magnetic properties as well as the phase diagram, including atomic ordering, martensitic and magnetic transitions, were investigated. The B2–L21 order–disorder transformation showed a parabolic-like curve against the Ga+In composition. The martensitic transformation temperature was found to decrease with increasing Ga+In composition and to slightly bend downwards below the Curie temperature of the parent phase. Spontaneous magnetization was investigated for both parent and martensite alloys. The magnetism of martensite phase was found to show glassy magnetic behaviors by thermomagnetization and AC susceptibility measurements.
ISSN:2199-384X
2199-3858
DOI:10.1007/s40830-016-0084-x