Formation of crystallographic texture in Fe-Ga alloys during various types of plastic deformation and primary recrystallization

Abstract

The regularities of texture formation in FeGa-based alloys during deformation at medium degrees (about 60 %) and primary recrystallization were studied. Deformation was realized by two methods: rolling and hydrostatic extrusion to study the deformation behavior and the texture formation processes. After deformation, the samples were subjected to annealing to initiate primary recrystallization. The structure and texture after deformation and recrystallization were studied using EBSD technique. It was shown that FeGa-based alloys have a greater tendency to form {hkl}<100> texture during primary recrystallization, compared to other wide-used soft magnetic materials with body-centered cubic (bcc) lattice. Alloying by boron enhances this tendency and results in a uniform texture after recrystallization. As a result, a high level of functional properties was achieved through the implementation of cost-effective deformation and annealing operations.