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在高真空高频电磁悬浮熔炼装置上,系统地研究了去除液态 Ni 基合金中异质晶核的微观净化过程,比较了不同净化方法对合金过冷度的影响,并分析了它们的净化机理和净化效果。实验表明,采用熔融玻璃自分离净化法是一种高效而简便的微观净化法,使六元合金(Ni_(0.53)Fe_(0.33)Co_(0.14))_(73)B_(17)Si_8Nb_2获得了417K(0.32T_L)的大过冷度。用净化后的深过冷液态金属进行了快淬,已成功地制备出50μm 厚的非晶条带。在工程上,这一方法为实现应用合金的非晶化开辟了一条途径。
In the high-vacuum high-frequency electromagnetic levitation smelting unit, the microscopic purification process of removing heterogeneous nuclei in liquid Ni-based alloys was systematically studied. The effects of different purification methods on the undercooling of the alloy were compared. Their purification mechanisms were also analyzed And purifying effect. The experiments show that the self-separation purification method of molten glass is an efficient and simple micro-purification method, which makes the hexagonal alloy (Ni 0.53 Fe 0.33 Co 0.14) (73) B 17 Si 8 Nb 2 417K (0.32T_L) of the large degree of undercooling. With purified supercooled liquid metal quenching, has been successfully prepared 50μm thick amorphous strip. In engineering, this approach opens up a way to achieve the amorphization of the applied alloy.