Influence of hot deformation on texture and magnetic properties of strip cast non-oriented electrical steel

Jiao, Haitao; Xu, Yujie; Xu, Haiping; Zhang, Yuanxiang; Xiong, Wei; Misra, R.D.K.; Cao, Guangming; Li, Jianping; Jiang, Jiaxin

doi:10.1016/j.jmmm.2018.05.015

Cited by 26 publications

(9 citation statements)

References 30 publications

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“…The recrystallization texture consisted of predominant {111}<112> with 5° deviation and {001}<140> components, together with weak α*-fiber ({11h}<12

>) texture. This kind of annealing texture in the OCR sample differed from the commonly observed in strip cast non-oriented silicon steels of 0.50 mm, which displayed strong Cube and Goss texture and weak γ-fiber texture [ 15 , 24 , 25 ]. This can be attributed to the change in recrystallization behavior due to the increase of severely fragmented grains and the decrease of shear bands in the cold rolled sheets.…”

Section: Resultsmentioning

confidence: 65%

Effect of Cold Rolling Process on Microstructure, Texture and Properties of Strip Cast Fe-2.6%Si Steel

Jiao

Qiu

et al. 2018

Materials

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The use of twin-roll strip casting for the preparation of non-oriented silicon steel has attracted widespread attention in recent years, but related reports are limited. In this study, both one- and two-stage cold rolling with three intermediate annealing temperatures were employed to produce strip cast non-oriented silicon steel. The evolution of the microstructure and texture through the processing routes and its effect on magnetic properties were studied. Compared with one-stage rolling, two-stage rolling increased the in-grain shear bands and the retention of Cube texture in the cold rolled sheets, thereby promoting the nucleation of favorable Goss and Cube grains and restraining the nucleation of harmful {111}<112> grains. With the increase in intermediate annealing temperature, the η-fiber texture in annealed sheets was gradually enhanced, and the average grain size was increased, leading to significant improvement of magnetic properties.

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“…The recrystallization texture consisted of predominant {111}<112> with 5° deviation and {001}<140> components, together with weak α*-fiber ({11h}<12

Section: Resultsmentioning

confidence: 65%

Effect of Cold Rolling Process on Microstructure, Texture and Properties of Strip Cast Fe-2.6%Si Steel

Jiao

Qiu

et al. 2018

Materials

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“…Some studies are focused on the initial texture, controlled during the casting process [2,3]. Some other researches aims to at improve the texture with optimization of the process and related parameters after casting, as rolling direction of cold rolling [4][5][6], reduction rate of hot rolling [7], temperature of rolling process [8], annealing temperature after cold rolling [9,10], two-stage cold rolling process and related parameters [11]. There are also studies dealing with the effects of material composition on texture control [12].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and texture evolution of nonoriented silicon steel during the punching process

Fang

Wang

Brisset

et al. 2022

Int J Miner Metall Mater

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The iron core of motors is mainly manufactured using a punching process from rolled non-oriented silicon steel, and this leads to deformation and texture evolution at cutting edge.According to this, circular samples of a non-oriented silicon steel were prepared by punching with blunt punch tools. In this work, two positions along the RD and TD directions at the cutting edge were analyzed. The main mechanisms of deformation for both positions are dislocation slip and formation of shear bands. These two mechanisms lead to similar texture evolutions for both positions. The dislocation slip leads to the formation of the component in the {221}〈𝑢𝑣𝑤〉 unbending area (200 µm away from cutting edge) and in the intermediate continuum bent area. In addition, the evolution of the texture from the γ fiber to the fiber was observed at {111} {110} the extremity of the cutting edge with formation of shear bands.

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“…In the body‐centered cubic (BCC) structure, the recrystallization behavior of warm‐rolled sheets is complex . The recrystallization nuclei of γ‐grains with the high stored energy can frequently occur in λ‐deformed grains based on the preferential growth of γ‐fiber subgrains and strain induced boundary migration (SIBM) Thus, {111} recrystallization textures comprising the {111}<110> and {111}<112> components have been more affected by the recrystallization behavior occurring on the warm‐rolled sheets .…”

Section: Resultsmentioning

confidence: 99%

Investigation of {001} Texture Reservation and Grain Boundary Character Distribution of Fe–6.9 wt%Si Magnetic Material by Warm–Cold Rolling

Cai

Huang

2019

steel research int.

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In this work, the texture evolution, grain boundary character distribution, and magnetic properties of nonoriented Fe–6.9 wt%Si electrical steel are studied. It is found that Fe–6.9 wt%Si steel obtains the higher magnetic inductions based on the heredity of {001} orientation texture during warm rolling, whereas the change in γ‐fiber recrystallization texture is attributed to a significant increase in the frequency of coincidence site lattice grain boundaries after annealing. Meanwhile, the increased recrystallization nuclei in the shear bands lead to the improvement of recrystallization nucleation rate and the decline of grain size because of the accumulation of internal stored energy. Finally, the values of magnetic inductions (B8, B50) and iron losses (P10/50, P10/400) decrease with increasing warm rolling temperatures.

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Influence of hot deformation on texture and magnetic properties of strip cast non-oriented electrical steel

Cited by 26 publications

References 30 publications

Effect of Cold Rolling Process on Microstructure, Texture and Properties of Strip Cast Fe-2.6%Si Steel

Effect of Cold Rolling Process on Microstructure, Texture and Properties of Strip Cast Fe-2.6%Si Steel

Microstructure and texture evolution of nonoriented silicon steel during the punching process

Investigation of {001} Texture Reservation and Grain Boundary Character Distribution of Fe–6.9 wt%Si Magnetic Material by Warm–Cold Rolling

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