Magnetostrain in Multifunctional Ni-Mn Based Magnetic Shape Memory Alloys |
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| Journal | Materials Science Forum (Volume 583) |
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| Volume | Advances in Shape Memory Materials |
| Edited by | V.A. Chernenko |
| Pages | 111-117 |
| DOI | 10.4028/www.scientific.net/MSF.583.111 |
| Citation | Lluís Mañosa et al., 2008, Materials Science Forum, 583, 111 |
| Online since | May, 2008 |
| Authors | Lluís Mañosa, Xavier Moya, Antoni Planes, Seda Aksoy, Mehmet Acet, Eberhard F. Wassermann, Thorsten Krenke |
| Keywords | Magnetic Shape Memory (MSM), Magnetic Superelasticity, Magnetostrain, Martensitic Transition |
| 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. |
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