Influence of copper addition on properties of (Fe36Co36B19Si5Nb4)100-xCux metallic glasses

Abstract

Purpose: The main aim of the paper was investigation of influence of copper addition on thermal, magnetic and mechanical (microhardness) properties of (Fe36Co36B19Si5Nb4)100-xCux (x=0 and 0.6) metallic glasses. Design/methodology/approach: The following experimental techniques were used: differential thermal analysis (DTA), transmission electron microscopy (TEM) and X-ray diffraction (XRD) method, measurements of magnetic properties, Vickers microhardness. Findings: It was shown that addition of small amount of copper to the base alloy induced a change of thermal, magnetic and mechanical properties. Research limitations/implications: The relationship between structure and magnetic and mechanical properties can be useful for practical application of these alloys. Practical implications: The (Fe36Co36B19Si5Nb4)100-xCux (x=0 and 0.6) metallic glasses due to a unique properties have been commercialized in the following application fields: precision mould material, precision imprint material, precision sensor material, precision machinery material and surface coating material. Originality/value: The originality of the paper are examinations of changes of thermal and mechanical properties combined with magnetic properties of the (Fe36Co36B19Si5Nb4)100-xCux (x=0 and 0.6) metallic glasses.