Optimization of soft magnetic properties and crystallization in FeAgNbSiB, FeAgNbB and FeAgCoNbB amorphous alloys

▶ The influence of silver and niobium on magnetic and electrical properties as well as plasticity of different type of amorphous alloys were investigated. ▶ The conditions of thermal treatment leading to the enhancement of magnetic permeability were determined. ▶ The observed enhancement of magnetic properties is due to annealing out of free volumes, a reduction of magnetoelastic energy and an increase of magnetization. ▶ Diffusion parameters of the first stage of crystallization process were determined.