MONITORING METHOD OF METALLIC GLASS DEFORMATION, BENDING TEST METHOD AND APPARATUS FOR THE MONITORING METHOD

摘要

PURPOSE: A method for monitoring the deformation degree of an amorphous metal material and a bending test method and apparatus therefor are provided to measure whether the increase of a shear band and the change of free volume accompanied to the plastic deformation of the amorphous metal material, thereby accurately testing the property of the deformation behavior of the amorphous metal material. CONSTITUTION: A method for monitoring the deformation degree of an amorphous metal material comprises the following steps of: measuring the change of electric resistance caused by the formation of a shear band and the change of free volume by measuring the electric resistance of the amorphous metal material subjected to bending operation; and measuring the electric resistance of the amorphous metal material while the ribbon type amorphous metal material sample is subjected to the artificial bending operation.