Structural Flexibility of a Pd₄₀Ni₄₀Si₅P₁₅ Bulk Metallic Glass

Abstract

We report that clearly different microstructures were obtained corresponding to different parts in a Pd₄₀Ni₄₀Si₅P₁₅ glassy rod, showing a nature of structural flexibility of a glass. Such a structural difference was believed to have the origin in the different cooling rate induced by the solidification in succession of the molten alloy during the casting. Upon this difference in the microstructure, the samples show very different deformation behaviors.