Heterogeneous microstructure of Zr₄₆Cu₄₆Al₈ nanoglasses was studied by molecular dynamics simulation. Glass-glass interfaces in nanoglasses could be told apart by formulating a contrast in the number of the quasi-nearest atom. Compared to other short-range order analysis, the quasi-nearest atom can reflect the deviated densely packing atomic clusters at the glass-glass interfaces directly. In terms of geometric and chemical short-range order, the low local fivefold symmetry and chemical segregation of interfaces improve the structural heterogeneity of nanoglasses. The local deformation preferentially takes place at the interfaces with a larger number of quasi-nearest atoms, achieving local plastic deformation tuned visually at the glass-glass interfaces. The correlation between structural and deformation properties is quantitatively assessed by tuning glass-glass interfaces. It is envisioned that the interfaces, as weak regions, can be a critical defect to tune the heterogeneous microstructure of nanoglasses.

Zr ₄₆ Cu ₄₆ Al _8的非均质组织通过分子动力学模拟研究了纳米玻璃。纳米玻璃中的玻璃-玻璃界面可以通过拟准准原子数的对比来区分。与其他短程有序分析相比，准最近原子可以直接在玻璃-玻璃界面上反映出偏离的密集堆积的原子团簇。就几何和化学短程顺序而言，低的局部五重对称性和界面的化学偏析改善了纳米玻璃的结构异质性。局部变形优选在具有大量准最近原子的界面处发生，从而实现在玻璃-玻璃界面处目视调整的局部塑性变形。通过调整玻璃-玻璃界面定量评估结构和变形特性之间的相关性。