中文摘要：

利用铜模吸铸法制备了（Cu0.46Zr0.44Al0.08Dy0.02）100-xFex（x=0,1,3,5,7）非晶合金,利用X射线衍射仪（XRD）、同步热分析仪（DSC）、透射电镜（TEM）、万能试验机和扫描电镜（SEM）研究了Fe元素添加对Cu基非晶合金结构及力学性能的影响。结果表明：Fe元素的适量添加有利于改善Cu46Zr44Al8Dy2块体非晶合金的结构,当添加原子分数为1%和3%Fe时,合金为完全非晶结构,并且出现富Fe相和富Cu相两相分离。Fe元素的适量添加有利于提高Cu46Zr44Al8Dy2合金的强度和塑性,当添加3%Fe时,块体非晶合金的抗压强度σf和塑性εp分别达到1835 MPa和0.5%。

英文摘要：

（Cu0.46Zr0.44Al0.08Dy0.02）100-xFex amorphous alloys with x=0,1,3,5,7 were prepared by a copper mold casting method.Amorphous structure and mechanical properties of the alloys were studied by X-ray diffraction（XRD）,differential scanning calorimetry（DSC）,Transmission electron microscopy（TEM）,universal testing machine and scanning electron microscope（SEM）.The results show that appropriate Fe addition can enhance structure of the amorphous alloys.The structure of the bulk alloy is completely amorphous when the Fe content is x=1 or 3,and apparent nanoscale phase separation occurs in the as-prepared alloys.When x=3 the alloy possesses large compression strength（1835 MPa） and plastic deformation（0.5%）.