The results show that Fe atoms and Cu atoms coexist in both bcc and fcc phases, but the local structures of Fe atoms and Cu atoms depend on the milling time t. The following data are obtained from the curve fitting.

• 结果表明 ；由于Fe和Cu原子分别向fcc的Cu相和bcc的Fe相的扩散 ；Fe和Cu同时存在于fcc和bcc结构相中 ；但Fe和Cu原子的局域环境结构随球磨时间的变化有很大差别 .