Texture Evolution during Asymmetrical Warm Rolling and Subsequent Annealing of Electrical Steel

Tuan Nguyen Minh; Jurij J. Sidor; Roumen H. Petrov; Leo A.I. Kestens

doi:10.4028/www.scientific.net/MSF.702-703.758

Paper Titles

Strong Goss Texture in Recrystallized Fe₈₁Ga₁₉ Sheet
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Effect of Cold Rolling Reduction Rate on Secondary Recrystallized Texture in 3%Si-Fe
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Effect of Uni-Axial Tensile Deformation on Microstructure and Magnetic Properties of 3.2% Si Grain Oriented Electrical Steel
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Orientation Evolutions During Hot Rolling of Electrical Steel Containing Initial Columnar Grains
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Texture Evolution during Asymmetrical Warm Rolling and Subsequent Annealing of Electrical Steel
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Through-Thickness Shear Strain in Silicon Steel under Asymmetric Rolling
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Effect of Grain Size and Meso-Texture on the Impact Toughness of Ti-Microalloyed Steel
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Crystallographic Texture as a Factor Enabling Ductile Fracture Arrest in High Strength Pipeline Steel
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Microstructure and Texture Evolution in Interstitial-Free (IF) Steel Processed by Multi-Axial Forging
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HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Texture Evolution during Asymmetrical Warm Rolling...

Texture Evolution during Asymmetrical Warm Rolling and Subsequent Annealing of Electrical Steel

Abstract:

The core loss and magnetic induction of electrical steels are dependent on the microstructure and texture of the material, which are produced by the thermo-mechanical processing. After a conventional rolling process, crystal orientations of the α-(//RD) and γ-(//ND) fibers are strongly present in the final texture. These fibers have a drastically negative effect on the magnetic properties of electrical steels. By applying asymmetric rolling, significant shear strains could be introduced across the thickness of the sheet and thus a deformation texture with more magnetically favorable components is expected. In this study, an electrical steel of 1.23 wt.% Si was subjected to asymmetric warm rolling in a rolling mill with different roll diameters. The evolutions of both deformed and annealed textures were investigated. The texture evolution during asymmetric warm rolling was analyzed by crystal plasticity simulations using the ALAMEL model. A good fit between measured and calculated textures was obtained. The annealing texture could be understood in terms of an oriented nucleation model that selects crystal orientations with a lower than average stored energy of plastic deformation.