| Titre | Mechanical properties and crystallographic texture of non-oriented electrical steel processed by repetitive bending under tension |
| |
| Auteur | Tamimi, S; He, Y ;
Sanjari, M; Pirgazi, H; Kockelmann, W; Robinson, F; Mohammadi, M; Kestens, L |
| Source | Materials Science and Engineering: A vol. 835, 142665, 2022 p. 1-12, https://doi.org/10.1016/j.msea.2022.142665  Accès ouvert |
| Image |  |
| Année | 2022 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20210653 |
| Éditeur | Elsevier |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1016/j.msea.2022.142665 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | propriétés électriques; cristallisation; cristallographie; minéraux métalliques; Liens et fonctions; Sciences et technologie |
| Illustrations | photographies; diagrammes schématiques; tableaux; graphiques; figures |
| Diffusé | 2022 01 13 |
| Résumé | (disponible en anglais seulement)
Improving the magnetic properties of non-oriented electrical steel (NOES) through the optimization of crystallographic texture has been an on-going research
activity for decades. However, using traditional rolling and annealing procedures, the obtained final textures were usually very similar, i.e., exhibiting the {111} (y) and <110> (a) fibres, which were not the desired {001} texture (teta-fibre) for
optimal magnetic quality. In the current work, a 1.8 wt% Si NOES was processed using a new sheet metal deformation method, i.e., repetitive bending under tension (R-BUT), also known as continuous bending under tension (C-BUT), to modify the texture
of the electrical steel. The hot-rolled and annealed NOES plates were repeatedly bent and unbent when they were pulled under tension. The deformed plates were then heat treated at different temperatures for various times. Neutron diffraction and
electron backscatter diffraction (EBSD) characterisation of the macro- and micro-textures proved that the R-BUT process significantly reduced the undesired {111} texture while promoting the {001} texture. The cube texture, which rarely formed after
conventional rolling and annealing, was also seen in the R-BUT samples after annealing. It was shown that, the shear plastic deformation (induced by R-BUT) played a significant role in promoting the desired textures. In addition, the results
indicated that the NOES processed by R-BUT could be deformed beyond its common formability limit, which may provide a method to address the poor workability challenge of high silicon electrical steels. |
| Sommaire | (Résumé en langage clair et simple, non publié)
L'acier électrique est un matériau magnétique doux largement utilisé dans les moteurs électriques pour amplifier le flux magnétique et maximiser
le couple. L'optimisation des propriétés magnétiques de l'acier électrique pour améliorer l'efficacité énergétique du moteur est le sujet de nombreuses recherches. Cet article utilise une nouvelle technologie de traitement pour déformer à froid
l'acier électrique et optimiser la texture finale du matériau. La texture obtenue est capable de réduire la perte d'énergie et d'augmenter le couple de sortie du moteur. |
| GEOSCAN ID | 329606 |
|
|