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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1662

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contributor.authorBehera, Ajit-
contributor.authorMishra, S C-
date.accessioned2012-04-04T10:33:47Z-
date.available2012-04-04T10:33:47Z-
date.issued2012-02-
identifier.citationProceedings of RAMM-2012, 25-26 February 2012, VSS University of Technology, Burla, Odisha, Indiaen
identifier.urihttp://hdl.handle.net/2080/1662-
descriptionCopyright belongs to proceeding publisheren
description.abstractFerromagnetic shape memory alloys (FSMA) are a new class of potential multifunctional materials with advancement over the conventional heat-driven shape memory alloys due to their exceptional properties. FSMAs can be controlled by magnetic field have attracted considerable attention as a type of magnetic actuator materials. Among the Heusler alloys that exhibit magnetic shape memory effect, the most extensively studied are those of the Ni-Mn-Ga system. However, to overcome some of the problems related to practical application, such as the high cost of gallium and the low martensitic transformation temperature that they usually present, the search for Ga-free alloys has been recently attempted. This paper aims to represent the behavior of Ga free Ni-Mn-Sn Heusler FSMA by varying the weight percentage of Sn. Three alloys i.e. Mn50Ni50-xSnx (x = 5, 7.5, and 10) were produced as bulk polycrystalline ingots by arc melting. The structural austenite-martensite transformation was checked by Differential Scaning calorimetry (DSC). It is found that, the transformation temperatures gradually decrease as increasing the Sn content. Multiple martensitic transformations, such as two- or three-step martensitic transformations, occur in all these alloy systems. Microstructure and elemental composition of prepared specimen were examined by using a Scanning Electron Microscope (SEM) equipped with a microanalysis system. Therefore, the present Ga-free Ni-Mn-Sn Heusler FSMAs have the great possibility to use in high temperature application and can present a large magnetic-field-induced strain.en
format.extent236973 bytes-
format.mimetypeapplication/pdf-
language.isoen-
subjectFerromagnetic Shape Memory Alloys (FSMAs)en
subjectNi-Mn-Snen
subjectmartensitic transformationen
titleAnalysis of Martensitic Transformation in Ni-Mn-Sn FSMAen
typeArticleen
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