The structure, thermodynamic and dynamic properties of normal and metastable liquid Ni_2xFe_50−xCo_50−x alloys were systematically investigated by combining electrostatic levitation (ESL) experiments and molecular dynamics (MD) simulations. Their composition dependence and mutual interaction were explored in detail. The actual densities of liquid Ni₉₀Fe₅Co₅, Ni₈₀Fe₁₀Co₁₀, Ni₇₀Fe₁₅Co₁₅ and Ni₆₀Fe₂₀Co₂₀ alloys were measured by ESL experiments in a wide temperature range. The simulated densities of these liquid alloys are in good agreement with the corresponding experimental data. The thermodynamic properties show that all these alloys exhibit a negative excess volume and mixing enthalpy. Meanwhile, their pair distribution functions indicate that Fe and Co atoms easily bond with Ni atoms and have a similar characteristic to each other if compared with Ni atoms. Furthermore, the structure factors validate that there exist icosahedral short-range and medium-range orders of Ni-Ni, Fe-Fe, Fe-Co and Co-Co bonds in these liquid alloys. Additionally, the solute diffusion properties reveal that the correlation between dynamic behavior and alloy composition is determined by the diffusion of Fe and Ni atoms.

通过将静电悬浮（ESL）实验和分子动力学（MD）模拟相结合，系统地研究了普通和亚稳态液态Ni _{2 x} Fe _{50- x} Co _{50- x}合金的结构，热力学和动力学特性。详细探讨了它们的成分依赖性和相互作用。液态Ni ₉₀ Fe ₅ Co ₅，Ni ₈₀ Fe ₁₀ Co ₁₀，Ni ₇₀ Fe ₁₅ Co ₁₅和Ni ₆₀ Fe ₂₀ Co ₂₀的实际密度通过ESL实验在较宽的温度范围内测量合金。这些液态合金的模拟密度与相应的实验数据非常吻合。热力学性质表明，所有这些合金均显示出负的过量体积和混合焓。同时，它们的成对分布函数表明Fe和Co原子容易与Ni原子键合，并且与Ni原子相比具有彼此相似的特性。此外，结构因素证实在这些液态合金中存在Ni-Ni，Fe-Fe，Fe-Co和Co-Co键的二十面体短程和中程级。此外，溶质扩散特性表明，动态行为与合金成分之间的相关性是由Fe和Ni原子的扩散决定的。