Eur. Phys. J. Plus (2017) 132: 42
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

Abstract

The martensitic transformation and magnetic properties of Mn₅₀Ni_50-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.