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 electr...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 2 fiber before rolling exhibited a stronger cube texture.With the 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 2 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 2 fiber before rolling,corresponding to the strong cube texture and low anisotropyparameter.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.52174355,51701021,51974032,and 51604034)the China Postdoctoral Science Foundation funded project(Grant Nos.2022T150074 and 2021M693904)the Science and Technology Development Program of Jilin Province(Grant No.20230201149GX).
文摘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 2 fiber before rolling exhibited a stronger cube texture.With the 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 2 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 2 fiber before rolling,corresponding to the strong cube texture and low anisotropyparameter.
