Effect of annealing treatment prior to cold rolling on the final microstructure and magnetic properties of an ultra-low carbon non-oriented Si–Sb electrical steel
Article
Overview
Research
Identity
Additional Document Info
View All
Overview
abstract
In this work, the effect of annealing prior to cold rolling on the final microstructure, grain size and magnetic properties of ultra-low carbon Si–Sb steel sheets was studied. Annealing was applied to hot-rolled steel strips at 880 °C for times of 30 min, 60 min, 90 min, 120 min, 150 min, and 180 min. Results show that, annealing of hot-rolled strips promote a selective grain growth, which leads to microstructures with a significant larger grain size. Modification of the hot-rolled material was followed by cold rolling to achieve a thickness of 0.25 mm and final annealing treatment at 850 °C for 60 min. Finally, magnetic properties of cold rolled and annealed samples were evaluated at 0°, 45° and 90° with respect to the rolling direction.
