Phase Diagrams of Ni2MnX (X = In, Sn, Sb) Heusler Alloys with Inversion of Exchange Interaction

Vasiliy D. Buchelnikov; Sergey Taskaev; Mikhail A. Zagrebin; Peter Entel

doi:10.4028/www.scientific.net/MSF.583.131

Paper Titles

Strain Glass: Glassy Martensite
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Damping Properties of SMA
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Magnetostrain in Multifunctional Ni-Mn Based Magnetic Shape Memory Alloys
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Magnetic and Crystallographic Properties of Shape Memory Alloys Ni₂Mn_1+xSn_1-x
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Phase Diagrams of Ni₂MnX (X = In, Sn, Sb) Heusler Alloys with Inversion of Exchange Interaction
p.131

Acoustic-Assisted, Magnetic-Field-Induced Actuation of Ni-Mn-Ga Single Crystals
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Magnetocaloric Properties and Magnetic Anisotropy by Tailoring Phase Transitions in NiMnGa Alloys
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Stress-Induced Twin Boundary Motion in Particulate Ni-Mn-Ga /Polymer Composites
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Structural and Mechanical Characterizations of Ni-Mn-Ga Thin Films Deposited by R.F. Sputtering and Heat-Treated
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HomeMaterials Science ForumMaterials Science Forum Vol. 583Phase Diagrams of Ni2MnX (X = In, Sn, Sb) Heusler...

Phase Diagrams of Ni₂MnX (X = In, Sn, Sb) Heusler Alloys with Inversion of Exchange Interaction

Abstract:

In this work with the help of the phenomenological Ginzburg-Landau theory of structural and magnetic phase transitions the phase diagrams of Heusler Ni-Mn-X (X = In, Sn, Sb) alloys with the inversion of exchange interaction are investigated. The investigation shows that the type of the phase diagrams in Heusler Ni-Mn-X (X = In, Sn, Sb) alloys depends on the value and sign of the free energy parameters. As it is seen from the analysis of the phase diagrams with the determined values and signs of the parameters of Landau functional there are thermodynamic paths which allow to explain experimental phase transitions in Heusler alloys Ni-Mn-X (X = In, Sn, Sb) and Ni-Co- Mn-X (X = In, Sn, Sb) qualitatively.