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.

我们报道了Fe ₆₉ Ni ₂₇ Mn ₄和Fe ₆₇ Ni ₂₇ Mn ₄ Zn ₂的奥氏体相中变形诱发马氏体特征的形貌和磁性。（wt％）合金在30％塑性变形后。扫描电子显微镜（SEM）和物理性能测量系统（PPMS）设施被用于研究，以从形貌和磁性的角度阐明变形引起的马氏体特征。扫描电子显微镜观察表明，在所检查合金的奥氏体相中，拉长的形变引起的马氏体形态。另外，两种合金在其马氏体相中表现出典型的铁磁性。发现饱和磁化强度（M _sat）首先随温度升高而升高，然后降低。我们发现，％Zn的添加将Fe-Ni-Mn合金的居里温度（T _c）转移到更高的温度。最大的Fe-Ni-Mn-Zn合金的bcc和fcc相混合结构得到M _sat（〜27 emu·g ^-1），H _c（〜26 Oe）和T _c（〜248）。