Internal friction in the bulk metallic glass Zr$_{41.2}$Ti$_{13.8}$Cu$_{12.5}$Ni$_{10}$Be$_{22.5}$ in amorphous and crystalline states

The low-frequency temperature dependences of the internal friction and the Young’s modulus of the Vitreloy-1 alloy (Zr$_{41.2}$Ti$_{13.8}$Cu$_{12.5}$Ni$_{10}$Be$_{22.5}$) have been studied in amorphous and crystalline states. The increase and maxima of the Young’s modulus due to structural transformations are observed during the crystallization of the Vitreloy-1 alloy from the amorphous phase in the range from the glass transition temperature (325$^\circ$C) to the temperature of the secondary crystallization (460$^\circ$C). At 200$^\circ$C, the internal friction in a partially crystallized Vitreloy-1 alloy exhibits a peak of presumably an interface nature.