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用熔融玻璃净化与循环过热相结合的方法，研究了Cu－390Ni－60Fe（mg·g－1）合金过冷熔体凝固组织的演化规律在过冷度25～304K的范围内，其凝固组织的形态有两次突变：第一次是在过冷度110K时，因枝晶熟化被抑制，由枝晶重熔形成的粒状晶转变成高度细化的细枝晶；第二次发生在过冷度180K时，组织因细枝晶再结晶转变成均匀的准球状晶粒
The evolution of the microstructure of the Cu-390Ni-60Fe (mg · g-1) alloy undercooled melt was studied by the combination of the purification of the molten glass and the overheating cycle. The solidification microstructure Of the morphology has two mutations: the first is under the supercooling 110K, dendrite aging is inhibited by the dendrite remelting of granular crystals into highly refined fine dendrite; the second occurred in the supercooling Degree 180K, the organization due to fine dendrites recrystallization into uniform quasi-spherical grains