Crystallization of amorphous Ti40.7Hf9.5Ni41.8Cu8 alloy during the low-frequency mechanical vibrations at room temperature

Abstract

The influence of the low-frequency vibrations at room temperature on the structure of an amorphous Ti40.7Hf9.5Ni41.8Cu8 thin ribbon was studied by X-ray diffraction and high-resolution transmission electron microscopy. It was found that mechanical vibrations for 1 h led to the formation of crystalline clusters that were several nanometres in size. An increase in the duration of the mechanical vibrations to 4 h resulted in the growth of the clusters until the formation of crystalline walls that surrounded amorphous islands. It was assumed that this process was due to the β relaxation that occurred during the low-frequency vibration.