Role of Si Minor Addition on Glass Formation and Flow Stress Characteristics of a Zr-Based Metallic Glass

The characterization of strain rate effects near glass transition temperature (Tg) gives important information on flow behavior metallic glasses (MGs). For this purpose, the tensile jump test was carried out to evaluate behaviors ZrCoAl(Si) MG ribbons. primary thermal analyses showed that Si minor addition into ZrCoAl alloy leads betterment stability and forming ability (GFA), correlated with small size atoms subsequent formation denser atomic clusters thermodynamically liquid stabilization in system. indicated adding element decreases sensitivity glassy stress improves amorphous structure under increase applied temperature. It also observed viscosity is more stable Si-added sample, implying high capability viscoplastic response state.