Influence of thermomechanical processing on shear bands formation and magnetic properties of a 3% Si non-oriented electrical steel

Dafé, Sara Silva Ferreira de; Paolinelli, Sebastião da Costa; Cota, André Barros

doi:10.1016/j.jmmm.2011.07.015

Cited by 49 publications

(13 citation statements)

References 10 publications

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“…Similar to the conventional coarse-grained hot rolled sheet [25][26][27], the large grains in hot rolled sheets favored the formation of in-grain shear bands during intermediate rolling. Shear bands are linked to material instability.…”

Section: Formation Of In-grain Shear Bands and Its Effect On Microstrmentioning

confidence: 78%

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

Liu

et al. 2015

Journal of Magnetism and Magnetic Materials

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Section: Formation Of In-grain Shear Bands and Its Effect On Microstrmentioning

confidence: 78%

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

Liu

et al. 2015

Journal of Magnetism and Magnetic Materials

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“…Lee et al has reported that the coarse grains after hot band annealing can slow down the recrystallization process after cold rolling, which retards the formation of the <111>//ND orientations and promotes the <001>//ND and <113>//ND textures. de Dafe et al also reported that coarse grains after hot band annealing promote the formation of the magnetically favorable crystal orientations (i.e., <001>//ND), due to the increased amount of the shear bands in the deformed microstructure, which increases the frequency of the nucleation of Type I and II Goss orientation …”

Section: Resultsmentioning

confidence: 99%

The Origins of the Goss Orientation in Non‐Oriented Electrical Steel and the Evolution of the Goss Texture during Thermomechanical Processing

Mehdi

Hilinski³

et al. 2019

steel research int.

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During the manufacturing of non-oriented electrical steel laminations for electric motor or generator applications, the Goss ({110}<001>) texture frequently appears in several stages of the processing. To understand the origin and the evolution of this texture, a non-oriented electrical steel (2.8 wt% Si) is processed through hot rolling, hot band annealing, cold rolling and final annealing, and the origins of the Goss orientation and the evolution of the Goss texture in these processes are investigated by electron backscatter diffraction (EBSD) techniques. It is seen that hot rolling results in a high volume fraction (%30%) of the Goss grains near the surfaces of the rolled plate, but the subsequent hot band annealing significantly reduces it to less than 10%. After cold rolling, the Goss volume fraction further decreases to only about 1%. Three locations of the Goss grains are observed in the coldrolled matrix, that is, those within the shear bands of two symmetrically equivalent {111}<112> grains, those embedded in the microbands of one of the {111}<112> grains, and those at the grain boundaries between the {111}<112> and {113}<361> grains. The formation mechanisms of these three types of Goss grains are explained using a transition band model and a rigid inclusion model.

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“…Many researchers have studied the improvement of microstructural and magnetic properties of non-oriented steel by varying chemical composition, heating and cooling technologies, rolling parameters, and annealing processes [1][2][3][4]. Fe-3.3% Si steel is a high grade cold-rolled non-oriented electrical steel that exhibits obvious brittleness and poor cold-working ability [5].…”

Section: …………………………………………………………………………………………………… Introduction:-mentioning

confidence: 99%

Tensile Deformation Behavior and Fracture of FE-3.3%SI Steel at a Wide Range of Moderate Temperatures.

Mei¹,

Bao²,

Li³

et al. 2017

IJAR

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The flow stress behavior of hot-rolled Fe-3.3%Si steel was studied through single-pass warm tensile experiments within the temperature range of 250 to 700 °C and strain rate range of 0.001 to 0.1 s -1 . The fracture morphologies and microstructures were also examined after deformation. The peak stress decreased linearly, but the elongation increased exponentially, with an increase in temperature. Work hardening behavior was obvious, and the non-uniform plastic deformation stage was shorter at lower temperatures, and accordingly grains were elongated. Significant dynamic recovery and recrystallization occurring in the alloy at deformation temperatures up to 550 °C resulted in some equiaxed grains in the microstructure. Fractures were ductile at lower strain rates and higher tension temperatures. Quasi-cleavage fractures were generated at higher strain rates, and cleavage fractures were generated on different planes in the range from surface to center.

show abstract

Influence of thermomechanical processing on shear bands formation and magnetic properties of a 3% Si non-oriented electrical steel

Cited by 49 publications

References 10 publications

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

Effects of rolling temperature on microstructure, texture, formability and magnetic properties in strip casting Fe-6.5 wt% Si non-oriented electrical steel

The Origins of the Goss Orientation in Non‐Oriented Electrical Steel and the Evolution of the Goss Texture during Thermomechanical Processing

Tensile Deformation Behavior and Fracture of FE-3.3%SI Steel at a Wide Range of Moderate Temperatures.

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