Preparation of Fe-Co-based bulk amorphous alloy from high purity and industrial raw materials

摘要

Purpose: The main aim of the paper was preparation of Fe-Co-based bulk amorphous alloy from high purity and industrial raw materials by an ejection copper mold casting method. Design/methodology/approach: The following experimental techniques were used: differential thermal analysis (DTA), scanning electron microscopy (SEM), light microscopy (LM), X-ray diffraction (XRD) method, Vickers microhardness. Findings: In this work comparison of structure and properties of Fe-Co-based bulk metallic glasses (BMGs) prepared from both high purity and industrial materials were presented. Research limitations/implications: Obtained structures are dependent on cooling rate and glass forming ability of the alloy prepared from high purity materials and from industrial (ferroalloys) materials. Practical implications: The successful preparation of the Fe-Co-based bulk metallic glasses from industrial raw materials will benefit cost-effective development of functional materials. Originality/value: In this work, an attempt has been made to prepare the Fe-Co-based BMGs more economically by means of replacement of high purity materials with industrial (ferroalloys) materials.