Strain-induced grain growth in non-oriented electrical steels

Kováč, František; Stoyka, V.; Petryshynets, Ivan

doi:10.1016/j.jmmm.2008.04.020

Cited by 27 publications

(19 citation statements)

References 4 publications

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“…This means that the microstructure and the magnetic properties of the electrical steels might be influenced by the presence of these elements due to reduced grain-boundary mobility and an unfavourable texture formation, as described by many authors [1][2][3][4]9,10,12,16,[20][21][22][23][24][25].…”

Section: Discussionmentioning

confidence: 99%

The nanostructure of non-oriented electrical steel sheets

Petrovič

Markoli

Čeh

2010

Journal of Magnetism and Magnetic Materials

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Section: Discussionmentioning

confidence: 99%

The nanostructure of non-oriented electrical steel sheets

Petrovič

Markoli

Čeh

2010

Journal of Magnetism and Magnetic Materials

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“…Special interest was focused on the study of the influence of VC particles on the grain growth and texture development. The abnormal grain growth thermal activation [16] is supported by the strain-induced grain boundary motion. This proposed procedure could lead to a marked reduction of production costs of the grain-oriented electrical steels providing energy savings with favorable impact on environment.…”

Section: Introductionmentioning

confidence: 89%

Microstructure and Texture Evolution in Temper Rolled Fe-Si Steels with New System Nano-Inhibitors Under the Dynamic Annealing Conditions

Kováč

Petryshynets

Horňák

2017

Archives of Metallurgy and Materials

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This work investigates the microstructure and texture evolution in grain-oriented electrotechnical steel with a new inhibition system based on vanadium carbides nano-particles. The novel approach for the preparation of this steel with appropriate final magnetic properties combines not only nanoinhibitors based on the vanadium carbides precipitations but also includes straininduced grain growth mechanism in combination with dynamic continuous annealing during the secondary recrystallization. The experimental grain-oriented steel with proposed new chemical composition was prepared in laboratory conditions. The texture analysis has shown that suggested procedure led the formation of sufficiently strong {110}<001> Goss texture during the short time period of a final annealing process, which is comparable to that obtained in the conventionally treated grain-oriented steels.

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“…Samples subjected to Cycle 1 which result in a slower carbon removal present higher intensities of components belonging to θ-fiber. The presence of these components in non-oriented electrical steels subjected to low plastic deformations and subsequent thermal treatment has been explained in terms of the mechanism of strain induced grain boundary migration (SIBM) [41]. Temper-rolling involves stored energy accumulation, which varies with the orientation of the rolling plane according to the sequence E (110) > E (111) > E (100) [41].…”

Section: Effect Of Decarburization Annealing On Crystallographic Texturementioning

confidence: 99%

“…The increase of components near to the γ-fiber texture in samples subjected to Cycle 2, could be probably related to the higher mobility of grains <111>//ND [41].…”

Section: Effect Of Decarburization Annealing On Crystallographic Texturementioning

confidence: 99%

Influence of Thickness and Chemical Composition of Hot-Rolled Bands on the Final Microstructure and Magnetic Properties of Non-Oriented Electrical Steel Sheets Subjected to Two Different Decarburizing Atmospheres

Calvillo

Salinas‐Rodríguez

et al. 2017

Metals

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During electrical steel processing, there are usually small variations in both chemical composition and thickness in the hot-rolled material that may lead to different magnetic properties for the same steel grade. Therefore, it is of great importance to know the effects of such variations on the final microstructure and magnetic properties of these steels. In the present investigation, samples of a specific grade of a commercial hot-rolled grain non-oriented (GNO) electrical steel were taken from different steel batches to investigate the effects of thickness and chemical composition (C, Sn, Mn and Ti) in the hot-rolled material on the final microstructure and magnetic properties (core losses and magnetic permeability) resulting from two different decarburizing annealing cycles. Hot-rolled samples were processed by cold rolling, intermediate annealing, temper-rolling and final decarburization annealing using the same processing parameters. The experimental results show that the minimum core losses and maximum magnetic permeability are obtained with the thinnest steel thickness and the largest grain size. Increasing Sb and Mn contents, and reducing the C and Ti concentrations also improve the magnetic behavior of these steels. It was also found the effect of grain size on the magnetic behavior is more significant than the one of crystallographic texture.

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Strain-induced grain growth in non-oriented electrical steels

Cited by 27 publications

References 4 publications

The nanostructure of non-oriented electrical steel sheets

The nanostructure of non-oriented electrical steel sheets

Microstructure and Texture Evolution in Temper Rolled Fe-Si Steels with New System Nano-Inhibitors Under the Dynamic Annealing Conditions

Influence of Thickness and Chemical Composition of Hot-Rolled Bands on the Final Microstructure and Magnetic Properties of Non-Oriented Electrical Steel Sheets Subjected to Two Different Decarburizing Atmospheres

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