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为了研究合金的物理、化学性质对非晶合金形成能力的影响,采用统计学方法研究了原子尺寸差σ、电负性差Δx、τ和φ各参数对镁基非晶合金形成能力的影响。结果表明:σ、Δx、τ和φ可有效表征镁基非晶合金形成能力,且以二次函数的拟合方式可比线性方式更好地描述合金原子堆垛密度、原子间的键合强度与非晶形成能力之间的关系,并可作为共晶团簇理论设计合金成分的参考标准和判定非晶形成能力和稳定性的理论依据;τ和φ充分考虑到了原子尺寸、电负性、元素百分比等物理因素对非晶合金形成过程的影响,准确地表征原子堆垛密度和原子间的键合强度,与临界制备尺寸的拟合程度优于其他表征参数,且具有计算简单和稳定性高的特点。
In order to study the influence of the physical and chemical properties of the alloy on the formability of amorphous alloys, the influence of atomic size difference σ, electronegativity difference Δx, τ and φ on the formability of Mg-based amorphous alloys was investigated by statistical method. The results show that: σ, Δx, τ and φ can effectively characterize the formability of Mg-based amorphous alloys, and quadratic function fitting method can be more linear than the linear method to describe the atomic packing density, atomic bonding strength and Amorphous formation ability and can be used as a reference standard for the composition of eutectic clusters theory and determine the amorphous alloy formation ability and stability of the theoretical basis; τ and φ give full consideration to the atomic size, electronegativity, the elemental Percentage and other physical factors on the formation of amorphous alloys, accurate characterization of atomic stacking density and atomic bonding strength, and the critical preparation of the size of the fitting better than the other characterization parameters, and has a simple calculation and high stability specialty.