TY  - JOUR
AU  - Aversa, Raffaella 
AU  - Parcesepe, Daniela 
AU  - Petrescu, Relly Victoria V. 
AU  - Chen, Guanying 
AU  -  Petrescu, Florian Ion T. 
AU  - Tamburrino, Francesco 
AU  - Apicella, Antonio 
PY  - 2017
TI  - Processability of Bulk Metallic Glasses
JF  - American Journal of Applied Sciences
VL  - 14
IS  - 2
DO  - 10.3844/ajassp.2017.294.301
UR  - https://thescipub.com/abstract/ajassp.2017.294.301
AB  - Microfluidic Shear Flow Instabilities in Injection Molded Glassy Metal are investigated. The formation of microfluidic shear flows instabilities involving the presence of different viscosities fluids has been observed in injection molded Bulk Metallic Glasses. The complex rheology of injection molded metastable glassy metal, which has been hypothesized to induce selective clustering of atoms of different steric hindrance, is discussed. Smaller Be, Cu and Ni atomsmay differently rearrange themselves in the bulk metal glassy super cooled liquids forming flow streams of lower viscosity. Segregation of atoms of different size could activate a variety of viscous flow instabilities such as folding and swirling. FEI Scios Dual-Beam Electron scanning and optical microscopy observations of a commercial liquid metal alloy (Zr44Ti11Cu10Ni10Be25) have been carried out. We discussed the influence of short-range order clusters distribution and its effect in locally induced shear flow instability and corrosion resistance.