New V45Zr20Ni20Cu10Al2.5Pd2.5 glassy alloy powder with wide supercooled liquid region

New multicomponent V-based glassy alloy powder has been synthesized by mechanical alloying a mixture of elemental V45Zr20Ni20Cu10Al2.5Pd2.5 powder at room temperature, using a low energy bull mill. The glassy powder of the end-product (720ks) in which its glass transition temperature (T-g) lies at a rather high temperature (745 K). crystallized through two sharp exothermic reactions at 843K and 919K, respectively. The total enthalpy change of crystallization (DeltaH(x)) is -1.78 kJ/mol. The supercooled liquid region before crystallization, DeltaT(x) of the synthesized glassy powder shows a high value (98 K) for a metallic glassy system. The reduced glass transition temperature (ratio between T-g and liquidus temperatures. T-l (T-g/T-l)) was found to be 0.52.