Magnetic properties, martensitic and magnetostructural transformations of ferromagnetic Ni–Mn–Sn–Cu shape memory alloys

• DOI: 10.1007/s00339-020-03489-3
• Publication Date: 2020-04-03T18:03:41Z
• Authors: Asma Wederni; Mihail Ipatov; Eloi Pineda; Joan-Josep Suñol; Lluisa Escoda; Julián Maria Gonz...; Safia Alleg; Mohamed Khitouni; Ryszard Żuberek; Oleksandr Chumak; Adam Nabiałek; Artem Lynnyk
• Keywords: Diffusionless transformation; Magnetic shape-memory alloy; Melt spinning

The influence of Cu doping on structural and magnetic properties of Ni50-xMn36Sn14- yCux, y (x=0, 1,2 and y=1 at. %) ribbons has been investigated. The crystalline structures of the alloys were resolute by X-ray diffraction (XRD). It is found that the addition of Cu for Ni stabilizes austenite phase, whereas, replacing small amount of Cu for Sn stabilizes modulated martensite phase. Differential scanning calorimetry measurements have proved the characteristic transformation temperatures.<br/>The financial support from MAT2016-675967-P MINECO project is acknowledged. This work was partially supported by the national Science Centre of Poland – project 2018/31/B/ST7/04006.<br/>