scholarly journals Effect of Cold Rolling Reduction on Secondary Recrystallization in Grain-oriented Electrical Steel Produced by Single-stage Rolling Process.

1991 ◽  
Vol 31 (9) ◽  
pp. 1013-1019 ◽  
Author(s):  
Shozaburo Nakashima ◽  
Kunihide Takashima ◽  
Jiro Harase
Keyword(s):  
Cold Rolling ◽  
Electrical Steel ◽  
Secondary Recrystallization ◽  
Rolling Process ◽  
Single Stage ◽  
Rolling Reduction ◽  
Cold Rolling Reduction

scholarly journals Twinning Behavior in Cold-Rolling Ultra-Thin Grain-Oriented Silicon Steel

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 187
Author(s):  
Bo Zhang ◽  
Li Meng ◽  
Guang Ma ◽  
Ning Zhang ◽  
Guobao Li ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Rolling Process ◽  
Silicon Steel ◽  
Mechanical Work ◽  
Area Fraction ◽  
Raw Material ◽  
Rolling Reduction ◽  
Cold Rolling Reduction ◽  
Schmid Factor ◽  
Twinning System

Twinning behaviors in grains during cold rolling have been systematically studied in preparing ultra-thin grain-oriented silicon steel (UTGO) using a commercial glassless grain-oriented silicon steel as raw material. It is found that the twinning system with the maximum Schmid factor and shear mechanical work would be activated. The area fraction of twins increased with the cold rolling reduction. The orientations of twins mainly appeared to be α-fiber (<110>//RD), most of which were {001}<110> orientation. Analysis via combining deformation orientation simulation and twinning orientation calculation suggested that {001}<110> oriented twinning occurred at 40–50% rolling reduction. The simulation also confirmed more {100} <011> oriented twins would be produced in the cold rolling process and their orientation also showed less deviation from ideal {001}<110> orientation when a raw material with a higher content of exact Goss oriented grains was used.

scholarly journals Effects of Cold Rolling Reduction on Secondary Recrystallization of Fe-3%Si Alloy

2002 ◽  
Vol 88 (3) ◽  
pp. 155-162
Author(s):  
Takahide SHIMAZU ◽  
Satoshi ARAI ◽  
Tomohiko SAKAI ◽  
Harushige TSUBAKINO
Keyword(s):  
Cold Rolling ◽  
Secondary Recrystallization ◽  
Rolling Reduction ◽  
Cold Rolling Reduction

A Study on the Deformation Dehaviours of Al-1.4Fe-0.2Mn Alloy Sheets

2016 ◽  
Vol 877 ◽  
pp. 380-386 ◽  
Author(s):  
Yan Feng Pan ◽  
Pi Zhi Zhao ◽  
Yi Fu Shen ◽  
Xiang Jun Shi ◽  
Tao Jiang
Keyword(s):  
Dislocation Density ◽  
Cold Rolling ◽  
Work Hardening ◽  
Energy Dispersive Spectrometer ◽  
Rolling Process ◽  
Rolling Reduction ◽  
Pure Aluminium ◽  
Work Softening ◽  
Grain Structures ◽  
Cold Rolling Reduction

The deformation behaviours and microstructure transformations during the cold rolling process of Al-1.4Fe-0.2Mn alloy sheets prepared from 99.7% pure aluminium were investigated by means of hardness-testing, transmission electron microscopy (TEM) and energy dispersive spectrometer (EDS). The phenomena of work hardening and work softening were observed. The hardness of Al-1.4Fe-0.2Mn alloy sheets increased with the increasing of cold rolling reduction firstly, and reached to a peak at 80% cold rolling reduction, meaning work hardening. However, with further increasing of cold rolling reduction, the hardness decreased, which indicates work softening. During the initial deformation stage, the dislocation density and the number of sub-grain structures increased gradually, and many dislocations formed tangles, resulting in work hardening. When the cold rolling reduction exceeded 80%, the dislocation density decreased and sub-grain structures polygonized, leading to work softening. The forming of Mn, Fe and Si bearing compounds is an important reason for the work softening due to lowering solid solution content.

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