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利用X射线衍射研究了α-Fe与Fe3混合粉末机械合金化过程中结构的变化．并测量了球磨不同时间后其饱和磁化强度的变化结果表明，随着球磨时间的延长，Fe3N相迅速分解直至消失，N原子部分固溶于α-Fe中，24h后可形成稳定的α-Fe（N）过饱和固溶体，其中N的质量分数约为0．290％-0．346％．随着球磨时间的延长,α-Fe的晶粒尺寸逐渐减小，24h后趋于定值，约为8nm．球磨引起样品中Fe原子周围N原子位置的变化，使得球磨过程中混合粉末的饱和磁化强度开始时降低，5h后又有所增加，24h后达到一定值
The structure of α-Fe and Fe3 mixed powders during mechanical alloying was studied by X-ray diffraction. The results show that the Fe3N phase decomposes rapidly and disappears as the ball milling time prolongs and the N atom partially dissolves in the α-Fe. After 24 h, the stable α-Fe (N) supersaturated solid solution, wherein the mass fraction of N is about 0.290% -0.346%. With the ball milling time, the grain size of α-Fe gradually decreased, after 24h tends to set value, about 8nm. Ball milling causes changes in the position of the N atoms around the Fe atom in the sample so that the saturation magnetization of the mixed powder decreases during the milling process and increases after 5 h and reaches a certain value after 24 h