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采用高能行星球磨的方法研究了成分为ＦｅｘＳｉ１－ｘ（ｘ＝０．３０～０．７５）的纯元素混合粉末的机械合金化过程。对球磨不同时间粉末的结构分析和组织观察表明：Ｆｅ７５Ｓｉ２５粉末经球磨形成具有ｂｃｃ结构的纳米晶α固溶体，此α固溶体的晶粒尺寸和晶格常数随球磨时间的延长而减少。Ｆｅ５０Ｓｉ５０粉末的球磨产物为单相ＦｅＳｉ化合物，而Ｆｅ３０Ｓｉ７０混合粉末的球磨产物为α＋ＦｅＳｉ＋β－ＦｅＳｉ２三相混合结构。在研究的成分范围内无非晶化发生，对此进行了热力学分析。
High-energy planetary ball milling method was used to study the mechanical alloying process of pure elemental mixed powders with the composition of FexSi1-x (x = 0.30-0.75). The structure analysis and microstructure observation of powder during different time showed that Fe75Si25 powder was ball-milled to form nanocrystalline α solid solution with bcc structure, and the grain size and lattice constant of α solid solution decreased with the milling time prolonging. The ball mill products of Fe50Si50 powders were single-phase FeSi compounds, while the ball mill products of Fe30Si70 mixed powders were α + FeSi + β-FeSi2 three-phase mixed structures. No amorphism occurred within the studied composition, and thermodynamic analysis was carried out.