Defects in the structure of Fe_(60)Co_(10)W_2Me_2Y_8B_(18) amorphous metallic glasses, where Me=(Mo,Nb)

摘要

Purpose: The paper presents results of the effect of structural defects on the process of magnetization in high magnetic fields in metallic glasses based on amorphous Fe_(60)Co_(10)W_2Me_2Y_8B_(18) (where Me=Mo, Nb) Design/methodology/approach: Bulk amorphous material samples were obtained with the method of rapid radial cooling in the copper liquid-cooled mould in a protective atmosphere of inert gas. The samples in the state after solidification were then examined using a vibrating magnetometer in the magnetic fields up to 2T. Static magnetic hysteresis loops and primary magnetization curve were recorded. Findings: Changing a small amount of the element from the group of transition metals have a significant effect on the magnetic properties of the produced alloy. Depending on the substituent also the type of defects identified in the examined materials changes. Research limitations/implications: It is advisable to conduct studies on samples with compositions close to studied in this work for better prediction of magnetic properties of materials. Practical implications: Bulk amorphous metallic glass are used in the electrical industry as cores in modern high-efficiency high-power transformers. Originality/value: W Paper presents studies on the influence of structure defects on the process of primary magnetization for amorphous Fe_(60)Co_(10)W_2Mo_2Y_8B_(18) and Fe_(60)Co_(10)W_2Nb_2Y_8B_(18) alloys. Alloys of given composition has not yet been tested for the influence of defects on the magnetization process.