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

Xu, Yujie; Jiao, Haitao; Qiu, Wenzheng; Misra, R.D.K.; Li, Jianping

doi:10.3390/ma11071161

Cited by 20 publications

(7 citation statements)

References 32 publications

(43 reference statements)

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“…Dislocation slip is known as the primary ruling mechanism during plastic deformation, which leads to the formation of dislocation cells, dislocation walls, or micro bands, depending on the imposed strain and initial orientation. Moreover, shear bands occur as a specific manifestation of local plastic instability at medium to large strains [19,20]. In the microstructure images of rolled samples, shear bands are visible.…”

Section: Microstructurementioning

confidence: 99%

Effect of Different Strain Routes on Mechanical Properties and Microstructure of Copper

Hoseini¹,

Ghayour²,

Golazani³

et al. 2021

Acta Metall Slovaca

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In the current paper, the role of change in strain routes was investigated, along with the cold rolling of copper metal. Four different strain routes including, (a) unidirectional rolling, (b) reverse rolling, (C) two-stage cross-rolling, and (d) multi-stage cross-rolling, were utilized to investigate the effect of strain routes change on microstructure, texture evolution, and anisotropy. Tensile strength in the unidirectional rolling sample compared to the cross-rolling sample decreased in the direction of initial rolling from 364 Mpa to 340 Mpa, in the direction of 45˚ to the initial rolling from 359 Mpa to 347 Mpa, and in the direction of perpendicular to the initial rolling from 371 Mpa to 360 Mpa. Texture intensity also decreased from 1413 in the unidirectional rolling sample to 992 in the cross-rolled sample. The results demonstrated that by rolling in different routes, the cross-rolling has led to a more homogeneous microstructure, less anisotropy, and weaker texture.

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Section: Microstructurementioning

confidence: 99%

Effect of Different Strain Routes on Mechanical Properties and Microstructure of Copper

Hoseini¹,

Ghayour²,

Golazani³

et al. 2021

Acta Metall Slovaca

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“…At intermediate rolling reductions, the material exhibits a {001} texture, indicating that the columnar microstructure effectively inhibits the formation of the typical <111>//ND + <110>//RD cold-rolled texture. Similarly, Xu et al investigated the effect of single-and double-step cold rolling on the microstructure, texture and magnetic properties of strip-cast Fe-2.6%Si steel [30]. These researchers reported that two-stage rolling increases the in-grain shear bands and the retention of the <001>//ND texture inherited from the texture produced by the strip casting process.…”

Section: Effect Of Columnar Microstructures On the Cold-rolling Texturementioning

confidence: 99%

Effect of Annealing Prior to Cold Rolling on the Microstructure Evolution and Energy Losses of Low-Si, Ultra-Low-C Hot-Rolled Electrical Steel

Rangel

Rodríguez

Rincon³

2020

Metals

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The microstructure of a low Si, ultra-low-C, hot-rolled electrical steel strip is modified by annealing at T < To, the α→γ transformation temperature. This heat treatment causes the abnormal anisotropic growth of surface grains which consumes the original hot-rolled microstructure. The growth of the surface grains first takes place parallel to the rolling direction and then in a columnar form parallel to the normal direction until grains growing in opposite directions from the surfaces impinge at the center of the strip. It is shown that cold rolling and a short annealing treatment at temperatures between 700 and 800 °C leads to microstructures which result in iron energy losses that can be as much as 30% lower than those observed in the same material not subjected to the annealing prior to cold rolling. The magnitude of the reduction in energy losses depends on strip thickness and processing parameters. The major effect is observed in material annealed at 710 °C and the relative effect (with respect to material that is not annealed prior to cold rolling) decreases as the strip thickness decreases. It is shown that these effects can be attributed to the effect of the processing conditions on texture and grain size. The maximum reduction in energy losses is observed when the final microstructure consists of ferrite grains ~1.5 times larger than those obtained if the material is not annealed prior to cold rolling.

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“…However, as a feasible possibility for high silicon steels, two step cold-rolling [44], [45] is now a common place procedure in industries. A recent study [46] suggest combining strip-casting and two step cold rolling.…”

Section: Summary -Recommendationsmentioning

confidence: 99%

“…The strong interest nowadays for improving texture in electrical steels can be noted by a significant number of recent studies focusing on texture [28], [42], [45], [46], [47], [48].…”

Section: Summary -Recommendationsmentioning

confidence: 99%

Methods for texture improvement in electrical steels

Campos¹

2019

ELECTROTECHNICAL REVIEW

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Aiming the development of high efficiency electric motors for electric vehicles, there is strong pressure for improvement of the magnetic properties of electrical steel sheets. One of the clearest possibilities is crystallographic texture enhancement. In this review, diverse methods for texture improvement are presented and discussed. All of them have the drawback of increasing the cost of material processing. Streszczenie. Materiały magnetyczne używane w pojazdach elektrycznych powinny mieć bardzo dobre właściwości. Jedną z metod ich poprawy jest polepszenie ich tekstury. W artykule przedtawiono metody poprawy tekstury oraz analizowano zalety iwady tych metod, włącznie z kosztami produkcji. Metody poprawy tekstury blach elektrotechnicznych

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

Cited by 20 publications

References 32 publications

Effect of Different Strain Routes on Mechanical Properties and Microstructure of Copper

Effect of Different Strain Routes on Mechanical Properties and Microstructure of Copper

Effect of Annealing Prior to Cold Rolling on the Microstructure Evolution and Energy Losses of Low-Si, Ultra-Low-C Hot-Rolled Electrical Steel

Methods for texture improvement in electrical steels

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