The Influence of Nanocrystallization Process on Magnetoelastic and Structural Properties of Fe_73.5Nb₃Cu₁Si_16.5-xB_6+x (x=0; 3) Alloys

Abstract

This paper presents the results of investigation of the influence of nanocrystallization process on magnetoelastic properties and structure of Fe_73.5Nb₃Cu₁Si_16.5-xB_6+x (x=0; 3) alloys. The magnetoelastic investigation was carried out on ring cores. During the magnetoelastic tests the compressive force (F) was applied perpendicularly to the direction of the magnetizing field (H) in the sample. In the paper the stress dependences of magnetic hysteresis loops as well as changes of flux density B as a function of compressive stresses σ (for constant values of the magnetizing field H) are presented. The experiment was carried out on both alloys after different stages of nanocrystallization. The obtained results confirmed that heat treatment influences not only magnetic but also magnetoelastic properties of Fe_73.5Nb₃Cu₁Si_16.5-xB_6+x (x=0; 3) alloys.