Formation of the Goss orientation near the surface of 3 pct silicon steel during hot rolling

1986 ◽  
Vol 17 (8) ◽  
pp. 1323-1334 ◽  
Author(s):  
Y. Shimizu ◽  
Y. Ito ◽  
Y. Iida
Keyword(s):  
Hot Rolling ◽  
Silicon Steel ◽  
Goss Orientation

Orientation Selectivity of Secondary Recrystallization in Grain-Oriented Silicon Steel

2013 ◽  
Vol 753 ◽  
pp. 337-340 ◽  
Author(s):  
Yoshiyuki Ushigami ◽  
Yoshihiro Arita ◽  
Kohsaku Ushioda
Keyword(s):  
Grain Size ◽  
Boundary Energy ◽  
Secondary Recrystallization ◽  
Silicon Steel ◽  
Orientation Selectivity ◽  
Pinning Force ◽  
Grain Boundary Energy ◽  
Deviation Angle ◽  
The Matrix ◽  
Goss Orientation

It has been observed that grain size of Goss secondary grain has a strong correlation with deviation angle from the exact Goss orientation and sharper Goss grain has larger grain diameter. This orientation selectivity of secondary recrystallization has been investigated with the statistical model of grain growth in which inhibitor and texture are taken into account. The model assumes that sharper Goss grain has a higher frequency of CSL boundaries to the matrix grains and thus has lower statistical grain boundary energy and suffers lower pinning force from the inhibitor. The analysis showed that this model successfully explains orientation selectivity and depicts the effect of inhibitor and texture.

On Goss Orientation in Strip Cast Grain-Oriented Silicon Steel

2018 ◽  
Vol 89 (4) ◽  
pp. 1700405 ◽  
Author(s):  
Xiang Lu ◽  
Feng Fang ◽  
Yuanxiang Zhang ◽  
Yang Wang ◽  
Guo Yuan ◽  
...  
Keyword(s):  
Silicon Steel ◽  
Strip Cast ◽  
Goss Orientation

Cu2S and AlN Precipitates in Fe-3%Si-0.5%Cu Steel Produced by Low Slab Reheating Technique

2013 ◽  
Vol 790 ◽  
pp. 69-72 ◽  
Author(s):  
Yang Wang ◽  
Yun Bo Xu ◽  
Yuan Xiang Zhang ◽  
Feng Fang ◽  
Xiang Lu ◽  
...  
Keyword(s):  
Grain Growth ◽  
Hot Rolling ◽  
Secondary Recrystallization ◽  
Primary Recrystallization ◽  
Silicon Steel ◽  
Recrystallization Annealing ◽  
Mean Size ◽  
The Mean

The grain oriented silicon steel containing 3%Si-0.5%Cu was produced by low slab reheating temperature technique. The precipitates were observed during the mainly process such as hot rolling, normalization, primary and secondary recrystallization annealing. The species, size, density and shape of precipitates were identified using TEM technique. The results indicate that Cu2S and AlN are mainly inhibitors which precipitate during hot rolling and normalization respectively. After primary recrystallization annealing the precipitation size of Cu2S is in the range of 30~40nm while the mean size of AlN is ~50nm, which could inhibit grain growth. In addition, the precipitation of MnS is inhibited comparing with the precipitation of Cu2S.

Effect of Normalization Process on the Microstructure and Properties of Annealed Cold-Rolled Sheet of Oriented Silicon Steel

2016 ◽  
Vol 873 ◽  
pp. 43-46
Author(s):  
Tao Xiong ◽  
Gang Zhao ◽  
Jian Wen Gao
Keyword(s):  
Grain Boundaries ◽  
Silicon Content ◽  
Silicon Steel ◽  
Rolled Sheet ◽  
High Angle ◽  
Percentage Content ◽  
Ebsd Data ◽  
Cold Rolled ◽  
Goss Orientation ◽  
Normalization Process

Research object of this article is a type of oriented silicon steel in 3.07% silicon content. By comparing samples under normalization and non-normalization respectively after primary recrystallizing annealing and secondary recrystallizing annealing, we have figured out how normalization influenced the recrystallizing behavior. The EBSD data of samples showed that normalization can half the grain size after primary recrystallizing, raise the percentage content of favored grain boundaries and high-angle grain boundaries, increase the content of Goss orientation grains by 5 times. And normalization coarsens the secondary recrystallizing grains, triples the magnetic induction and reduces the iron loss by half.

Survival of Goss Grains during Cold Rolling of a Silicon Steel Single Crystal

2005 ◽  
Vol 495-497 ◽  
pp. 1061-1066 ◽  
Author(s):  
Dorothée Dorner ◽  
Ludger Lahn ◽  
Stefan Zaefferer
Keyword(s):  
Cold Rolling ◽  
Single Crystal ◽  
High Strain ◽  
Shear Bands ◽  
Rolling Process ◽  
Silicon Steel ◽  
Oriented Crystal ◽  
Cold Rolled ◽  
Goss Orientation ◽  
Crystal Volume

A silicon steel single crystal with initial Goss orientation, i.e. the {110}<001> orientation, was cold rolled up to 89 % thickness reduction. Most of the crystal volume rotates into the two symmetrical equivalent {111}<112> orientations. However, a weak Goss component is still present after high strain, although the Goss orientation is mechanically instable under plane strain loading. Two types of Goss-oriented crystal volumes are found in the highly deformed material. We suggest that their origin is different. The Goss-oriented regions that are observed within shear bands form during the cold rolling process. In contrast, those Goss-oriented crystal volumes that are found inside of microbands survive the cold rolling.

Microstructure, Texture and Inhibitors of the As-Cast and Hot Rolled Grain-Oriented Silicon Steel by Strip Casting

2016 ◽  
Vol 852 ◽  
pp. 101-104 ◽  
Author(s):  
Wen Qiang Liu ◽  
Cheng Shuai Lei ◽  
Han Mei Tang ◽  
Hong Yu Song ◽  
Hai Tao Liu
Keyword(s):  
Hot Rolling ◽  
Texture Evolution ◽  
Fiber Texture ◽  
Silicon Steel ◽  
Rolling Reduction ◽  
Recrystallization Annealing ◽  
Goss Texture ◽  
Steel Strips ◽  
Columnar Grains ◽  
Hot Rolled

The microstructure and texture evolution of the as-cast and hot rolled grain-oriented silicon steel strips was investigated, and the precipitation of the inhibitors of the hot rolled strips was clarified. The results showed that the microstructure of the as-cast strip was characterized by coarse columnar grains with strong {001}<0vw> fiber texture. The microstructure of hot rolled strips was composed of ferrite and pearlite and the microstructure was gradually refined with increasing hot rolling reduction. In the hot rolled strips, α and γ fiber textures were enhanced at the expense of initial {001}<0vw> fiber texture and Goss texture was generated in the surface and sub-surface layer with increasing hot rolling reduction. Besides, a great number of dispersed MnS particles with the size of 20-30nm were observed in the hot rolled strips. These MnS particles could act as the effective inhibitors during the second recrystallization annealing of the grain-oriented silicon steel.

scholarly journals Finite element modelling of surface defect evolution during hot rolling of Silicon steel

2019 ◽  
Vol 268 ◽  
pp. 181-191 ◽  
Author(s):  
M. Nioi ◽  
C. Pinna ◽  
S. Celotto ◽  
E. Swart ◽  
D. Farrugia ◽  
...  
Keyword(s):  
Finite Element ◽  
Hot Rolling ◽  
Finite Element Modelling ◽  
Surface Defect ◽  
Silicon Steel ◽  
Element Modelling ◽  
Defect Evolution
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