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<p>This study examines the structural, morphological, and magnetic properties of nanostructured FeNi and FeSn alloys synthesized via mechanical alloying. The alloys were milled for varying durations (0–20&#xa0;h) and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM). XRD analysis confirmed the formation of α-FeNi and FeSn phases after 5&#xa0;h of milling, with progressive structural refinement as milling time increased. SEM micrographs revealed significant particle size reduction and morphological evolution. Magnetic measurements showed distinct behaviors for the two alloys: in FeSn, prolonged milling enhanced coercivity, remanence, and squareness ratio while reducing saturation magnetization. FeNi exhibited high saturation magnetization with a small coercivity, likely influenced by grain size reduction, defect-induced pinning, and phase evolution. These findings emphasize the role of nanostructuring in tuning the magnetic properties of FeNi and FeSn alloys, highlighting their potential for advanced magnetic applications.</p>

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Magnetic and Structural Properties of Nanostructured FeNi and FeSn Synthesized via Powder Metallurgy Process

  • 期刊论文

  • 发表日期：

    2025年6月3日

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  • Abderahim Abada,
  • Abderrahmane Younes,
  • Omar Abada,
  • Rachid Amraoui

摘要

This study examines the structural, morphological, and magnetic properties of nanostructured FeNi and FeSn alloys synthesized via mechanical alloying. The alloys were milled for varying durations (0–20 h) and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM). XRD analysis confirmed the formation of α-FeNi and FeSn phases after 5 h of milling, with progressive structural refinement as milling time increased. SEM micrographs revealed significant particle size reduction and morphological evolution. Magnetic measurements showed distinct behaviors for the two alloys: in FeSn, prolonged milling enhanced coercivity, remanence, and squareness ratio while reducing saturation magnetization. FeNi exhibited high saturation magnetization with a small coercivity, likely influenced by grain size reduction, defect-induced pinning, and phase evolution. These findings emphasize the role of nanostructuring in tuning the magnetic properties of FeNi and FeSn alloys, highlighting their potential for advanced magnetic applications.