Magnetostrain in Multifunctional Ni-Mn Based Magnetic Shape Memory Alloys

Lluís Mañosa; Xavier Moya; Antoni Planes; Seda Aksoy; Mehmet Acet; Eberhard F. Wassermann; Thorsten Krenke

doi:10.4028/www.scientific.net/MSF.583.111

Paper Titles

Shape Memory Alloys: A Summary of Recent Achievements
p.21

Microstructure of Magnetic Shape-Memory Alloys: Between Magnetoelasticity and Magnetoplasticity
p.43

Strain Glass: Glassy Martensite
p.67

Damping Properties of SMA
p.85

Magnetostrain in Multifunctional Ni-Mn Based Magnetic Shape Memory Alloys
p.111

Magnetic and Crystallographic Properties of Shape Memory Alloys Ni₂Mn_1+xSn_1-x
p.119

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
p.147

Magnetocaloric Properties and Magnetic Anisotropy by Tailoring Phase Transitions in NiMnGa Alloys
p.169

HomeMaterials Science ForumMaterials Science Forum Vol. 583Magnetostrain in Multifunctional Ni-Mn Based...

Magnetostrain in Multifunctional Ni-Mn Based Magnetic Shape Memory Alloys

Abstract:

We report on strain measurements in Ni-Mn-Ga, Ni-Mn-In, Ni-Mn-Sn and Ni-Mn-Sb polycrystalline alloys as a function of temperature and magnetic field. Experiments are carried out in the austenitic and martensitic phases of the alloys. It is shown that in the cubic phase the magnetostrain is similar for all systems but by contrast very different behaviour is found when a field is applied in the martensitic phase. In the latter case, magnetic shape memory and magnetic superelasticity is obtained for Ni-Mn-Ga and Ni-Mn-In, respectively. The physical reasons for the different behaviour are discussed.