Abstract:

High silicon electrical steel ultra-thin sheets of 0.10mm thick， containing about 6.5% Si， were prepared by rolling method. The evolution of deformation texture during cold rolling was studied using X-ray diffraction. Then the methods of controlling deformation texture were proposed in favor of the λ (<100>//ND， normal direction) and η (<100>//RD， rolling direction) recrystallization texture， respectively. The rolling reduction between 50% and 70% is easy to promote the formation of the η recrystallization texture at the layer of S=0.5. While， the rolling reductions of either less than 30% or 91%~97% are in favor of λ recrystallization texture， in which the former reduction is more suitable to control the λ recrystallization texture when using a two-stage cold rolling method to prepare high silicon steel ultra-thin sheets.

Key words: Fe-6.5%Si, high silicon steel, thin sheets, cold rolling, texture