Effect of the hot rolling on Goss development and magnetic induction in an advanced soft magnetic Fe–27%Co alloy

Abstract

This paper shows a complete study about the characterization of the texture and the microstructure evolution of an industrial thermo-mechanical processing aiming to develop an advanced soft magnetic Fe-27%Co material with a sharp Goss texture. Thanks to its high magnetic performances, this alloy is able to replace the grain oriented Fe-Si alloy in transformers of electric aircrafts application. It appears that the development of a highly Goss textured Fe-27%Co alloy could be achieved by optimizing the intensity of the Goss and rotated Cube texture during hot rolling using an adequate thermo-mechanical processing, namely finishing hot rolling in the ferritic phase.

Characterization of Tensile Stress-Dependent Directional Magnetic Incremental Permeability in Iron-Cobalt Magnetic Sheet: Towards Internal Stress Estimation through Non-Destructive Testing

“…There are many ways to reduce magnetostriction, including the development of appropriate textures [4,6]. In [7], B. Nabi et al claimed that 2 of 16 magnetostriction in Fe-27%Co alloy is a consequence of magnetocrystalline anisotropy partly linked to the sheet crystallographic texture and, by developing a Goss texture, much better magnetic properties will be observed including a lower magnetostriction. Tuning internal stresses is another promising solution [8].…”