Nanocrystalline Fe₅₀Co₂₅Ni₁₅X₁₀ (X = B_amorphous, B_crystalline, and Si) powdered alloys were prepared by mechanical alloying process. Morphological, microstructural, and structural characterizations of the powders milled several times were investigated by scanning electron microscopy and X-ray diffraction. The final crystallographic state strongly depends on the chemical composition and the grinding time; it can be single-phase or two-phase. The crystallite size reduction down the nanometer scale is accompanied by the introduction of high level of lattice strains. The dissolution of Co, Ni, B (amorphous and crystalline), and Si into the α-Fe lattice leads to the formation of highly disordered Fe-based solid solutions. Coercivity (Hc) and the saturation magnetization (Ms) of alloyed powders were measured at room temperature by a vibration sample magnetization. The magnetic measurements show a contrasting Ms and (Hc) in all alloy compositions. Conclusively, soft magnetic properties of nanocrystalline alloys are related to various factors such as metalloid addition, formed phases, and chemical compositions.

中文翻译：

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硼和硅的添加对高能机械铣削制备的Fe-Co-Ni合金组织和磁性能的影响

纳米晶Fe ₅₀ Co ₂₅ Ni ₁₅ X ₁₀（X  = B_非晶态，B_晶态通过机械合金化工艺制备了Si）粉末合金。通过扫描电子显微镜和X射线衍射研究了多次研磨的粉末的形态，微观结构和结构特征。最终的结晶状态在很大程度上取决于化学成分和研磨时间。它可以是单相或两相。纳米尺寸以下的微晶尺寸减小伴随着高水平晶格应变的引入。Co，Ni，B（非晶态和晶体态）和Si溶入α-Fe晶格导致形成高度无序的铁基固溶体。在室温下通过振动样品磁化强度测量合金粉末的矫顽力（Hc）和饱和磁化强度（Ms）。磁性测量结果表明所有合金成分中的Ms和（Hc）均相反。总之，纳米晶合金的软磁性能与各种因素有关，例如准金属的添加，形成的相和化学组成。