Effects of topology on abnormal grain growth in silicon steel

Chen, N.; Zaefferer, Stefan; Lahn, Ludger; Günther, Klaus; Raabe, Dierk

doi:10.1016/s1359-6454(02)00574-8

Cited by 80 publications

(55 citation statements)

References 19 publications

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“…Chen et al checked the twice cold-rolled and annealed microstructure of conventional oriented electrical steel before secondary recrystallization by means of micro-orientation analysis based on field emission high resolution electron back-scattering diffraction. The Goss grains were searched among the 2 million grains and the sizes of grains which were oriented differently were also examined [16]. It was found that those grains with the largest sizes did not appear to have Goss orientation while the Goss grains did not appear larger than surrounding grains.…”

Section: Precipitation Process Of Mns Particles In High Energy Boundamentioning

confidence: 99%

Challenges of the study on precipitation behaviors of MnS in oriented electrical steels

Mao

Yang

2008

Front. Mater. Sci. China

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The studies of the thermo-mechanic principles and the kinetic analysis of MnS precipitation behavior in oriented electrical steels conducted in the last dozen years have been summarized. The problems and insufficiency in the fields concerning nucleation theory of MnS precipitation, the relationship between the precipitation and dynamic recrystallization of the matrix as well as the influence of high-energy boundary precipitation on the pinning effect of the boundary migration were discussed. Suggestions were proposed to modify researches concerning the initial position density for MnS nucleation, the mutual interaction between the precipitation and the dynamic recrystallization as well as the kinetic principles of precipitation nucleation on grain boundaries with different boundary energy, which would complete the related theory of MnS precipitation behaviors.

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Section: Precipitation Process Of Mns Particles In High Energy Boundamentioning

confidence: 99%

Challenges of the study on precipitation behaviors of MnS in oriented electrical steels

Mao

Yang

2008

Front. Mater. Sci. China

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“…Many investigations on theory of Goss texture formation in GO steels have been conducted and different mechanisms have been proposed in which the effect of inhibitor particles on boundary migration during abnormal grain growth is emphasized. [1][2][3][4][5][6][7] However, none of the mechanisms proposed are predominantly accepted yet. It has been observed [8] that inhibitor particles could not entirely suppress NGG.…”

Section: Introductionmentioning

confidence: 99%

Effect of Inhibitor Particles on Normal Grain Growth before Secondary Recrystallization of Grain-Oriented Electrical Steels

Mao

Ren

2016

steel research int.

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The effect of inhibitor particles on normal grain growth is investigated. Migration of quadruple junction points, instead of entire boundary area, should be dominant during grain growth process according to experimental observations of Fe–3%Si alloys and corresponding regression calculations. However, the evolution of Zener drag induced by inhibitor particles is different from evolution of driving force for grain growth during annealing, and needs to be treated independently in kinetic equation of parabolic growth. An analytic equation is therefore managed to be obtained, of which the predictions agree with experimental observations while certain ambiguity in conventional equations is avoided. The new kinetic equation describes that inhibitor particles can drastically reduce but cannot completely suppress grain growth process which can only practically be inhibited when the average grains size has become large enough. This inhibition effect is not predicted by conventional kinetic equations.

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“…Therefore, Goss oriented grains could grow more rapidly during the secondary recrystallization, which leads to strong Goss texture. The analysis of large area microstructure before the secondary recrystallization using high-resolution back scattering electrons indicated [1] , however, that Goss oriented grains did not appear to be larger than surrounding grains. Therefore, the mechanism of Goss texture formation could not be explained simply by coarsening of MnS particles in high angle boundaries and following grain growth while large grains swallow small grains [5] .…”

mentioning

confidence: 96%

“…The formation mechanism of Goss texture, however, is still not fully understood yet [1] . It is generally believed that the pinning effects of fine MnS particles during the secondary recrystallization process of Fe-3%Si alloys play key important role in the formation of strong Goss texture [2] .…”

mentioning

confidence: 99%

“…Therefore, the mechanism of Goss texture formation could not be explained simply by coarsening of MnS particles in high angle boundaries and following grain growth while large grains swallow small grains [5] . The coarsening of MnS particles in high angle boundaries mentioned above would result in weakening or disappearance of Goss texture instead, if the Goss oriented grains are relatively small, which is unfavorable for strong Goss texture formation [1,4] . The present work will attempt to analyze the influence of MnS particles inside different grains on grain boundary migration.…”

mentioning

confidence: 99%

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Influence of MnS particles on the behaviors of grain boundary migration in Fe-3%Si alloys

Mao

2009

Sci. Bull.

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Effects of topology on abnormal grain growth in silicon steel

Cited by 80 publications

References 19 publications

Challenges of the study on precipitation behaviors of MnS in oriented electrical steels

Challenges of the study on precipitation behaviors of MnS in oriented electrical steels

Effect of Inhibitor Particles on Normal Grain Growth before Secondary Recrystallization of Grain-Oriented Electrical Steels

Influence of MnS particles on the behaviors of grain boundary migration in Fe-3%Si alloys

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