Internal friction in the bulk metallic glass Zr41.2Ti13.8Cu12.5Ni10Be22.5 in amorphous and crystalline states

摘要

The low-frequency temperature dependences of the internal friction and the Young's modulus of the Vitreloy-1 alloy (Zr41.2Ti13.8Cu12.5Ni10Be22.5) 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 (325A degrees C) to the temperature of the secondary crystallization (460A degrees C). At 200A degrees C, the internal friction in a partially crystallized Vitreloy-1 alloy exhibits a peak of presumably an interface nature.