The immiscible Cu-Fe alloy was characterized by a metastable miscibility gap. With the addition element Zr, the miscibility gap can be extended into the Cu-Fe-Zr ternary system. The effect of the atomic ratio of Cu to Fe and Zr content on the behavior of liquid-liquid phase separation was studied. The results show that liquid-liquid phase separation into Cu-rich and Fe-rich liquids took place in the as-quenched Cu-Fe-Zr alloy. A glassy structure with nanoscale phase separation was obtained in the as-quenched (Cu_0.5Fe_0.5)₄₀Zr₆₀ alloy sample, exhibiting a homogeneous distribution of glassy Cu-rich nanoparticles in glassy Fe-rich matrix. The microstructural evolution and the competitive mechanism of phase formation in the rapidly solidified Cu-Fe-Zr system were discussed in detail. Moreover, the electrical property of the as-quenched Cu-Fe-Zr alloy samples was examined. It displays an abnormal change of electrical resistivity upon temperature in the nanoscale-phase-separation metallic glass. The crystallization behavior of such metallic glass has been discussed.

不溶混的Cu-Fe合金的特征在于亚稳溶混间隙。借助添加元素Zr，可将混溶间隙扩展到Cu-Fe-Zr三元体系中。研究了Cu与Fe和Zr的原子比对液-液相分离行为的影响。结果表明，在淬火后的Cu-Fe-Zr合金中发生了液-液相分离，形成富Cu和富Fe的液体。在淬火后的（Cu _0.5 Fe _0.5）₄₀ Zr _60中获得具有纳米级相分离的玻璃状结构。合金样品，在玻璃态富铁基质中呈现出玻璃态富铜纳米颗粒的均匀分布。详细讨论了快速凝固的Cu-Fe-Zr体系的组织演变和相形成的竞争机理。此外，检查了淬火后的Cu-Fe-Zr合金样品的电性能。它在纳米级相分离金属玻璃中显示出电阻率随温度的异常变化。已经讨论了这种金属玻璃的结晶行为。