Abstract Shear band morphology of a binary Pd80Si20 nanoglass (NG) and metallic glass (MG) was investigated using bonded interface indentation technique. The results clearly indicate that the plastic strain in the subsurface deformation zone in NG is accommodated by very fine secondary shear bands in addition to a fewer primary shear bands while in MG it is mainly by primary shear bands. Furthermore, at any given indentation load, the size of the normalized subsurface deformation zone, χ, is found to be higher for NG compared to MG suggesting that the deformation of Pd80Si20 NG is more pressure sensitive and softer than MG. These differences in deformation characteristics between the NG and MG closely related to the intrinsic differences in the glass structure.

中文翻译：

---

二元Pd-Si金属与纳米玻璃剪切带特性的差异

摘要 使用键合界面压痕技术研究了二元 Pd80Si20 纳米玻璃 (NG) 和金属玻璃 (MG) 的剪切带形貌。结果清楚地表明，除了较少的主剪切带外，NG 中地下变形区的塑性应变由非常细的次剪切带调节，而在 MG 中主要由主剪切带调节。此外，在任何给定的压痕载荷下，与 MG 相比，NG 的归一化地下变形区 χ 的大小被发现更高，这表明 Pd80Si20 NG 的变形比 MG 对压力更敏感且更软。NG和MG之间变形特性的这些差异与玻璃结构的内在差异密切相关。