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Designing and synthesis of cost effective bulk metallic glasses(BMGs)has been of considerable interest during the last decade so that they can be made commercially viable.Among these,Zr-based BMGs have been reported extensively due to their attractive properties.An alloy having composition Zr_(65)Cu_(18)Ni_9Al_8 was designed and synthesized using 2-3 N pure materials by Cu mould casting.The alloy was characterized by X- ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDS)and high temperature differential scanning calorimetry(DSC).Thermal parameters like supercooled liquid region△T_x,reduced glass transition temperature T_(rg),γandδparameters were evaluated.Mechanical properties like microhardness,nanohardness,elastic modulus and fracture strength were measured.The alloy showed wide supercooled liquid region of 129+1 K with improved thermal stability.The alloy has considerable fracture strength along with fair amount of ductility.
Designing and synthesis of cost effective bulk metallic glasses (BMGs) has been considerably appreciated during the last decade so that they can be made viable. Ammong these, Zr-based BMGs have been extensively due to their attractive properties. Composition Zr 65 Cu 18 Ni 9 Al 8 was designed and synthesized using 2-3 N pure materials by Cu casting. ray spectroscopy (EDS) and high temperature differential scanning calorimetry (DSC) .Thermal parameters like supercooled liquid regionΔT_x, reduced glass transition temperature T_ (rg), γandδparameters were evaluated.Mechanical properties like microhardness, nanohardness, elastic modulus and fracture strength were measured. alloy showed wide supercooled liquid region of 129 + 1 K with improved thermal stability. the alloy has considerable fracture strength along with fair amount of ductility.