In-situ EBSD study on the cube texture evolution in 3 wt% Si steel complemented by ex-situ EBSD experiment — From nucleation to grain growth

Takajo, Shigehiro; Merriman, C.C.; Vogel, Sven C.; Field, David P.

doi:10.1016/j.actamat.2018.11.054

Cited by 66 publications

(10 citation statements)

References 42 publications

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“…Here, the Cube nuclei and other oriented nucleus in the deformation matrix were identified and directly tracked at a large-scale. The previous studies reported in literature 4,8,11,17,24 on different oriented grain recrystallization in α-and γ-fibers do not take into account the difference in degree of recovery on developing texture within the local area. Furthermore, the subgrain coalescence and bulging disparity between the two fibers was directly observed and theorised.…”

Section: Introductionmentioning

confidence: 93%

“…This importance is derived from the Cube texture component's <100> easy magnetisation direction, that is vital for efficient operation of electric motors and actuators. Various studies have been conducted about the formation of Cube texture formation [8][9][10][11][12][13][14][15] . Cube grains have been reported to nucleate from shear and deformation bands.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Hawezy

Birosca

2021

Acta Materialia

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Hawezy

Birosca

2021

Acta Materialia

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“…Direct observation of microstructure evolution was carried out by the in situ heating EBSD measurement [33,34] with an FE-SEM (JSM-7001F, JEOL, Japan) operating at 15 kV of the accelerating voltage. A heating stage system (HSEA-1000, TSL Solutions Co., Ltd., Japan) was used, and the heating stage was mounted on a SEM sample stage.A sheet sample was cut from the middle part of an as-built rod sample by using wire electric discharge machining to the size of 5 mm × 7 mm × 1 mm (length × width × thickness).…”

Section: Ebsdmentioning

confidence: 99%

Property Improvement of Additively Manufactured Ti64 by Heat Treatment Characterized by In Situ High Temperature EBSD and Neutron Diffraction

Takajo¹,

Tomida

Caspi³

et al. 2021

Metals

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Among various off-equilibrium microstructures of additively manufactured Ti-6Al-4V alloy, electron beam powder bed fusion, in which three dimensional metallic objects are fabricated by melting the ingredient powder materials layer by layer on a pre-heated bed, results in a specimen that is nearly free of the preferred orientation of the α-Ti phase as well as a low beta phase fraction of ∼1 wt%. However, when further heat treatment of up to 1050 ∘C was applied to the material in our previous study, a strong texture aligning the hexagonal basal plane of α phase with the build direction and about 6% β phase appeared at room temperature. In this study, to understand the mechanism of this heat treatment, the grain level microstructure of the additively manufactured Ti-6Al-4V was investigated using in situ high temperature EBSD up to 1000 ∘C, which allows the tracking of individual grains during a heat cycle. As a result, we found a random texture originating from the fine grains in the initial material and observed a significant suppression of α phase nucleation in the slow cooling after heating to 950 ∘C within the α and β dual phase regime but close to the the β-transus temperature at ∼980 ∘C, which led to a coarse microstructure. Furthermore, the texture resulting from phase transformation of the additively manufactured Ti-6Al-4V assuming nucleation at the grain boundaries was modeled, using the double Burgers orientation relationship for the first time. The model successfully reproduced the measured texture, suggesting that the texture enhancement of the α phase by the additional heat treatment derives also from the variant selection during the phase transformation and nucleation on grain boundaries.

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“…Complex orientation rotation and recrystallization behavior occur throughout thermomechanical processing and result in strong unfavorable γ-fiber (<111>//ND) and α*-fiber ({11 h}<1, 2, 1/h>) recrystallization textures [9,10]. Several special methods have been proposed to produce a {100} recrystallization texture [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Role of Hot Rolling in Microstructure and Texture Development of Strip Cast Non-Oriented Electrical Steel

Jiao

Xie

et al. 2022

Metals

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In this study, the effect of the hot-cold rolling process on the evolution of the microstructure, texture and magnetic properties of strip-cast non-oriented electrical steel was investigated by introducing hot rolling with different reductions. The results indicate that hot rolling with an appropriate reduction, such as the 20% used in this study, increases the shear bands and {100} deformed microstructure in the cold roll sheet. As a result, in our study, enhanced η and Cube recrystallization texture and the improved magnetic induction were obtained. However, hot rolling with excessive reduction (36–52%) decreased the shear bands and increased the α-oriented deformation microstructure with low stored energy. It enhanced the α recrystallization texture and weakened the η texture, resulting in a decrease in the magnetic induction. In addition, hot rolling promoted the precipitation of supersaturated solid solution elements in the as-cast strip, thereby affecting the subsequent microstructure evolution and the optimization of its magnetic properties.

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In-situ EBSD study on the cube texture evolution in 3 wt% Si steel complemented by ex-situ EBSD experiment — From nucleation to grain growth

Cited by 66 publications

References 42 publications

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Property Improvement of Additively Manufactured Ti64 by Heat Treatment Characterized by In Situ High Temperature EBSD and Neutron Diffraction

Role of Hot Rolling in Microstructure and Texture Development of Strip Cast Non-Oriented Electrical Steel

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In-situ EBSD study on the cube texture evolution in 3 wt% Si steel complemented by ex-situ EBSD experiment — From nucleation to grain growth

Cited by 66 publications

References 42 publications

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Disparity in recrystallization of α- & γ-fibers and its impact on Cube texture formation in non-oriented electrical steel

Property Improvement of Additively Manufactured Ti64 by Heat Treatment Characterized by In Situ High Temperature EBSD and Neutron Diffraction

Role of Hot Rolling in Microstructure and Texture Development of Strip Cast Non-Oriented Electrical Steel

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In-situ EBSD study on the cube texture evolution in 3 wt% Si steel complemented by ex-situ EBSD experiment — From nucleation to grain growth