Eur. Phys. J. Plus (2021) 136: 98
https://doi.org/10.1140/epjp/s13360-020-01021-3

Regular Article

Influence of plastic deformation on the microstructural and magnetic properties of some Fe-based alloys

¹ Department of Physics, Amasya University, 05100, Amasya, Turkey
² Department of Physics, Ankara Hacı Bayram Veli University, 06900, Ankara, Turkey

^a ealdirmaz@gmail.com

Received: 10 September 2020
Accepted: 13 December 2020
Published online: 18 January 2021

Abstract

We report the morphological and magnetic properties of deformation-induced martensite characteristics in the austenite phase of Fe₆₉Ni₂₇Mn₄ and Fe₆₇Ni₂₇Mn₄Zn₂ (wt %) alloys after 30% plastic deformation. Scanning electron microscopy (SEM) and also physical property measurement system (PPMS) facilities were applied to investigation to clarify the deformation-induced martensite characteristics from morphological and magnetic points of view. Scanning electron microscope observations showed elongated deformation-induced martensite morphology in the austenite phase of the examined alloys. Additionally, two alloys exhibited typical ferromagnetism in their martensite phase. The saturation magnetization (M_sat) was found to be firstly increased and then decreased with increasing temperature. We found that the  % Zn addition shifts the Curie temperature (T_c) of Fe–Ni–Mn alloys to higher temperatures. The largest M_sat (~ 27 emu·g⁻¹), the H_c (~ 26 Oe), and T_c (~ 248) were obtained for the Fe–Ni–Mn–Zn alloy with a mixed configuration of bcc and fcc phases.