https://doi.org/10.1140/epjp/i2017-11316-1
Regular Article
Magnetostructural transformation and magnetocaloric effect in Mn-Ni-Sn melt-spun ribbons
1
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, 110819, Shenyang, China
2
Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS UMR 7239, Université de Lorraine, 57045, Metz, France
3
Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Université de Lorraine, 57045, Metz, France
4
Taiyuan University of Science and Technology, 030024, Taiyuan, China
* e-mail: lizongbin@126.com
Received:
30
September
2016
Accepted:
21
December
2016
Published online:
24
January
2017
The martensitic transformation and magnetic properties of Mn50Ni50-x
Sn
x
melt-spun ribbons were investigated. It is shown that the increase of Sn content results in a nearly linear decrease of martensitic transformation temperatures in the ribbons, with an average rate of 70 K per at % of Sn. In Mn50Ni40Sn10 ribbons, the field-induced reverse martensitic transformation from a weak magnetic martensite to a ferromagnetic austenite was realized due to the strong magnetostructural coupling. Under a field change of 5T, the large magnetic entropy change of 13.7 J kg-1K-1 and the effective refrigerant capacity of 72.9 Jkg-1 were obtained in Mn50Ni40Sn10 ribbons.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2017