Journal ArticleDOI
Physical properties of polycrystalline Ni52Mn26Al22 around martensitic transformation
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In this paper, electrical resistivity and magnetic properties on Ni 52 Mn 26 Al 22 polycrystalline Heusler alloy were investigated in detail and the progress of transformation of this alloy was also followed by heat flux measurements.About:
This article is published in Solid State Communications.The article was published on 2009-02-01. It has received 14 citations till now. The article focuses on the topics: Phenomenological model & Diffusionless transformation.read more
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Systematic study of structural, transport, and magnetic properties of Ni52+xMn26−xAl22 (1 ≤ x ≤ 5) melt-spun ribbons
Saurabh Kumar Srivastava,Vijay Srivastava,Lajos K. Varga,Vladimir Khovaylo,Ryousuke Kainuma,Makoto Nagasako,Ratnamala Chatterjee +6 more
TL;DR: In this paper, the structural, magnetic and transport properties of Ni52+xMn26−xAl22 (1.1 eV) melt-spun ribbons have been characterized by a variety of experimental techniques.
Journal ArticleDOI
Thermodynamics of martensite formation in Fe–Mn–Al–Ni shape memory alloys
Alexander Walnsch,Mario J. Kriegel,Mykhaylo Motylenko,Grzegorz Korpala,Ulrich Prahl,Andreas Leineweber +5 more
TL;DR: In this article, it is shown by thermodynamic considerations that the undercooling of a shape memory alloys is caused by the resistance of the B2 precipitates to undergo the transformation to the L10 structure enforced by the martensitic transformation of the matrix.
Journal ArticleDOI
Annealing effect on phase transformation in nano structured Ni–Mn–Ga ferromagnetic shape memory alloy
TL;DR: In this article, the X-ray diffraction profile revealed that annealed Ni52.6Mn23.7Ga24.3 alloy powder at 1073 K displays mixture phases of austenite and martensite.
Journal ArticleDOI
Effect of Annealing on Transformation Temperature and Magnetization in the Ni–Mn–Ga Alloy
TL;DR: In this paper, a detailed study on the preparation and characterization of off-stoichiometric ferromagnetic Ni-Mn-Ga shape memory alloy has been carried out, and it has been found that annealing the polycrystalline Ni−Mn−Ga alloy at 700°C for 20 hours under argon atmosphere reduces the range of transformation temperature.
Journal ArticleDOI
Phase transitions and magnetic properties of Ni(Co)–Mn–Al melt-spun ribbons
M. Lyange,Vladimir Khovaylo,Rohit Singh,Saurabh Kumar Srivastava,Ratnamala Chatterjee,Lajos K. Varga +5 more
TL;DR: In this paper, the influence of Cobalt addition on phase transition temperatures and magnetic properties of melt-spun ribbons of Ni 50− x Co x Mn 31+ y Al 19− y (x = 0-10, y = 0 -3) magnetic shape memory alloys was studied.
References
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6% magnetic-field-induced strain by twin-boundary motion in ferromagnetic Ni–Mn–Ga
TL;DR: In this paper, a simple model accounts quantitatively for the dependence of strain on magnetic field and external stress using as input parameters only measured quantities, and the strain versus field curves exhibit appreciable hysteresis associated with the motion of the twin boundaries.
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Magnetostriction of martensite
Richard D. James,Manfred Wuttig +1 more
TL;DR: In this article, a general strategy for inducing magnetostriction in ferromagnetic martensitic materials is described, and an analysis of domain redistribution caused by a magnetic field is given.
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Promising ferromagnetic Ni–Co–Al shape memory alloy system
Katsunari Oikawa,L. Wulff,Takashi Iijima,Fumihiko Gejima,Toshihiro Ohmori,Asaya Fujita,Kazuaki Fukamichi,Ryosuke Kainuma,Kiyohito Ishida +8 more
TL;DR: In this paper, a system of ferromagnetic β-phase Ni-Co-Al alloys with an ordered B2 structure that exhibits the shape memory effect has been developed.
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Magnetic properties and large magnetic-field-induced strains in off-stoichiometric Ni–Mn–Al Heusler alloys
TL;DR: In this article, magnetic properties and magnetic-field-induced strains (MFIS) have been investigated for off-stoichiometric Ni-Mn-Al Heusler alloys with an ordered L21 structure.
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Large field induced strain in single crystalline Ni–Mn–Ga ferromagnetic shape memory alloy
TL;DR: In this article, a room temperature free shear strain of 5.7% is reported in a single crystal of Ni-Mn-Ga having a composition close to the Heusler alloy Ni2MnGa.