中文摘要：

将Fe73．5Cu1Nb3-xTixSi13．5B9（x=0，1，2，3）合金快淬带进行高能球磨制成粉末样品，在550℃真空退火1h，研究了磁粉的相结构及磁性。结果表明，随球磨时间延长，不添加Ti的Fe73.5Cu1Nb3Si13.5B9合金中析出晶化相的晶格常数增大。添加Ti的Fe73．5Cu1Nb3-xTixSi13．5B9（x=0，1，2，3）合金在球磨60h后再退火，可以得到单一α-Fe（Si）软磁相，且随Ti含量增大，析出晶化相的晶格常数减小，饱和磁化强度增大、矫顽力降低。

英文摘要：

The phase structure and magnetic properties of nanocrystalline Fe73.5Cu1Nb3-xTixSi13.5B9（x=0,1,2,3） powders were investigated. The samples were obtained from melt-spun ribbons by high energy ball milling and subsequent annealing at 550 ~C for 1 h. The result shows that the lattice constant of the precipitated phase in the annealed and Ti-free Fe73.5Cu1Nb3Si13.5B9 powders increases with the elongation of milling time. With the doping of Ti, the annealed Fe73.5Cu1Nb3-xTixSi13.5B9（x=0,1,2,3） powders after milling for 60 h keep single a-Fe（Si） phase. In addition, with the increase of Ti content, the lattice constant of the precipitated phase decreases, the saturation magnetization increases and the coercivity decreases.