Role of texture before rolling: a research based on texture and magnetic properties of 4.5 wt.% Si non-oriented electrical steel
Publication Name
Journal of Iron and Steel Research International
Abstract
The evolution of microstructure, texture, and magnetic properties with random texture, near-copper texture, weak near-cube texture, and strong λ fiber (<001>//ND (normal direction)) before rolling of non-oriented electrical steel was studied. Three recrystallized hot bands with different textures but similar grain sizes were prepared by pre-annealing at low-temperature and high-temperature normalization annealing. It was observed that the final annealed products exhibited similar recrystallized microstructures. By contrast, the final annealed product with more λ fiber before rolling exhibited a stronger cube texture. With the λ fiber before rolling becoming stronger, the proportion of {111}<110> deformed matrices became larger, which could be observed in the early recrystallization stage. The overwhelmingly dominant λ orientation nuclei are formed in the {111}<110> deformed matrix and become the dominant texture. Eventually, the best magnetic properties are obtained in the products with strong λ fiber before rolling, corresponding to the strong cube texture and low anisotropy parameter.
Open Access Status
This publication is not available as open access
Funding Number
20230201149GX
Funding Sponsor
Jilin Provincial Scientific and Technological Development Program