Influence of stress relief annealing temperature on the cutting edge microstructure and on the recovery of magnetic properties of grain oriented electrical steel

Alves, Edivânia Maria Martins; Silveira, Carolina Cesconetto; Cunha, Marco Antônio da

doi:10.1016/j.matchar.2020.110408

Cited by 15 publications

(4 citation statements)

References 10 publications

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“…All shearing conditions lengthened the grains near the incisions. [22,23] Figure 5 shows the IPF maps and Schmidt factor (SF) maps of the ND surfaces near the edges cut by the single blade. The SF [24,25] comprehensively showed the actuation degree of deformations with {111}<110>, {111}<112>, and {111}<123> slip bands.…”

Section: Resultsmentioning

confidence: 99%

Slanted Blades Optimizing Grain Texture and Work Hardening of Non‐Oriented Electrical Steel in Stress Coverages during Shearing and Blanking Processes

Zhao

Song

Wang

et al. 2021

steel research int.

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Section: Resultsmentioning

confidence: 99%

Slanted Blades Optimizing Grain Texture and Work Hardening of Non‐Oriented Electrical Steel in Stress Coverages during Shearing and Blanking Processes

Zhao

Song

Wang

et al. 2021

steel research int.

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“…Goss texture has always been a major research subject of grain-oriented silicon steel, and researchers have proposed some hypotheses about the origin of Goss nuclei and made significant progress in studying the formation of Goss-oriented grains during hot rolling. However, the formation and evolution of texture [4,5] during hot rolling [6] is still an important and interesting research field in the manufacturing process [7] of grain-oriented silicon steel [8,9].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Formation of Fiber Texture in the Subsurface Layer of Hot-Rolled Plate of 3.2%Si Grain-Oriented Steel

Zou,

Liu,

Qiu

2023

Metals

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During the hot rolling process, inhomogeneity microstructure and variations of texture along the thickness direction of hot-rolled plate were formed through shear deformation and recrystallization. The purpose of this study is to investigate the formation and evolution of fiber texture in hot-rolled plate of grain-oriented silicon steel. The results indicate that, in the surface layer s = 1 of hot-rolled plate, a large number of equiaxed grains are formed under high shear force. Under the surface layer, as shear force gradually decreases along the thickness direction, the grain aspect ratio of recrystallized grains gradually increases along the thickness direction of hot-rolled plate, and the shape of the recrystallized grains formed in the subsurface layer and center layer becomes more irregular along the thickness direction. Under the combination of compressive force and decreasing shear force along the thickness direction, fiber texture composed of dozens of specific orientations (such as {112}<111>, {110}<112>, {213}<364>, {441}<104> and Goss orientations) is formed in the subsurface layer s = 0.5~0.9 and gradually evolves along the thickness direction. Therefore, the formation of Goss texture is a small part of fiber texture and is the result of texture evolution in the subsurface layer s = 0.5~0.9.

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“…However, complex residual stress is generated during the manufacturing process owing to misfits in the shape of parts of both different regions and different phases, or even because of local variations in elastic constants, or thermal and mechanical properties, which are self-equilibrating stresses that remain in the part after manufacturing [2,3]. Annealing is a heat treatment method for releasing stress and improving microstructure when the steel is heated to an approximate Ac1 temperature and then slowly cooled in the furnace to obtain a near-equilibrium structure [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Uniaxial Compressive Stress on Phase Transformation Kinetics of Low-Carbon Steel

et al. 2022

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To attain microstructure transformation and the kinetics of phase transformation under stress during the annealing process, dilatometric curves of phase transformation for Q235 steel were tested using a Gleeble-3500 thermal-mechanical simulator under different uniaxial compressive stresses. The Johnson–Mehl–Avrami (JMA) model considering impingement correction was applied to study the phase-transformation kinetics during annealing. The results showed that the grain size increased with increasing uniaxial compressive stresses because it provided additional energy for grain growth. Furthermore, the interfacial migration velocity decreased with increasing stress owing to grain coarsening and a decrease in the density of the α/γ boundary. Meanwhile, the stress reduces the sum of the misfit accommodation energy and interface energy caused by the transformation, and the driving force required for the transformation of austenite to ferrite decreases. Hence, it was concluded that uniaxial compressive stress plays a complex role in the phase transformation, which inhibits interfacial migration and the transformation rate while providing additional energy for the transformation.

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Influence of stress relief annealing temperature on the cutting edge microstructure and on the recovery of magnetic properties of grain oriented electrical steel

Cited by 15 publications

References 10 publications

Slanted Blades Optimizing Grain Texture and Work Hardening of Non‐Oriented Electrical Steel in Stress Coverages during Shearing and Blanking Processes

Slanted Blades Optimizing Grain Texture and Work Hardening of Non‐Oriented Electrical Steel in Stress Coverages during Shearing and Blanking Processes

A Study on the Formation of Fiber Texture in the Subsurface Layer of Hot-Rolled Plate of 3.2%Si Grain-Oriented Steel

Effect of Uniaxial Compressive Stress on Phase Transformation Kinetics of Low-Carbon Steel

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