Columnar grain growth during annealing prior to cold rolling of non-oriented electrical steels

2019 ◽  
Vol 243 ◽  
pp. 8-18 ◽  
Author(s):  
E.J. Gutiérrez Castañeda ◽  
C.N. Palafox Cantú ◽  
A.A. Torres Castillo ◽  
A. Salinas Rodríguez ◽  
R. Deaquino Lara ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Grain Growth ◽  
Electrical Steels ◽  
Columnar Grain

An EBSD investigation on the columnar grain growth in non-oriented electrical steels assisted by strain induced boundary migration

2019 ◽  
Vol 252 ◽  
pp. 42-46 ◽  
Author(s):  
E.J. Gutiérrez Castañeda ◽  
M.G. Hernández Miranda ◽  
A. Salinas Rodríguez ◽  
J. Aguilar Carrillo ◽  
I. Reyes Domínguez
Keyword(s):  
Grain Growth ◽  
Boundary Migration ◽  
Electrical Steels ◽  
Columnar Grain

Microstructural Development of Electrical Steels under Si and Al Diffusion

2006 ◽  
Vol 258-260 ◽  
pp. 39-45
Author(s):  
José Barros ◽  
Yvan Houbaert
Keyword(s):  
Grain Size ◽  
Phase Transformation ◽  
Grain Growth ◽  
Alpha Phase ◽  
Microstructural Development ◽  
Diffusion Annealing ◽  
Electrical Steels ◽  
Common Features ◽  
Columnar Grain ◽  
Size And Morphology

The effect of Si and Al diffusion from a coating in the microstructure of electrical steels have been investigated for three different processing routes. In general the final texture is not affected by the diffusion of Si or Al from the coating whereas the grain size and mor- phology can be affected if the silicon content of the substrate is low enough to allow phase transformation. The gamma to alpha phase transformation caused by the diffusion of Si and Al determines the grain size and morphology resulting in columnar grain growth. The evolu- tion of the microstructures during the diffusion annealing for the production of high Si steels shows some common features with the microstructure evolution during the grain growth in conventional low silicon (Si < 3 wt.%) electrical steels.

Columnar Grain Growth with Enhanced Rotation Texture in Temper Rolled NO Silicon Steels

2014 ◽  
Vol 782 ◽  
pp. 201-204 ◽  
Author(s):  
Ivan Petryshynets ◽  
František Kováč ◽  
Mária Molnárová ◽  
Petra Gavendová ◽  
Martin Sopko ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Grain Growth ◽  
Texture Evolution ◽  
Main Idea ◽  
Rolling Process ◽  
Point Of View ◽  
Temper Rolling ◽  
Electrical Steels ◽  
Columnar Grains ◽  
Columnar Grain

The present work investigates texture evolution stages in vacuum-degassed non-oriented electrical steels. The main idea behind the improvement of soft magnetic properties relies on deformation induced grain growth phenomena and heat transport phenomena promoting the preferable formation of columnar grains with so called cube crystallographic orientation {100}<0vw>. In order to achieve the desired orientation with appropriate microstructure state from magnetic properties point of view, we have used an adjusted temper rolling process at elevated temperature and subsequent dynamical annealing in laboratory conditions.

Columnar grain growth in non-oriented electrical steels

2004 ◽  
Vol 269 (3) ◽  
pp. 333-340 ◽  
Author(s):  
F. Kovác̆ ◽  
M. Dz̆ubinský ◽  
Y. Sidor
Keyword(s):  
Grain Growth ◽  
Electrical Steels ◽  
Columnar Grain

Hot and cold rolling of electrical steels �0100?�0300

Metallurgist ◽  
1972 ◽  
Vol 16 (6) ◽  
pp. 421-422
Author(s):  
M. G. Anan'evskii ◽  
N. G. Bochkov ◽  
Ya. A. Burshtein ◽  
L. I. Butylkina ◽  
S. A. Shirinskaya ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Electrical Steels ◽  
Hot And Cold Rolling

Columnar grain growth in axially heated urania based sinters

1969 ◽  
Vol 32 (2) ◽  
pp. 351-353 ◽  
Author(s):  
I. Amato ◽  
R.L. Colombo
Keyword(s):  
Grain Growth ◽  
Columnar Grain

scholarly journals The influence of Mg and Mn content on abnormal grain growth in AA5182 type alloys

10.30544/463 ◽  
2020 ◽  
Vol 25 (04) ◽  
pp. 315-323
Author(s):  
Tamara Radetić ◽  
Miljana Popović ◽  
Bojan Gligorijević ◽  
Ana Alil ◽  
Endre Romhanji
Keyword(s):  
Cold Rolling ◽  
Grain Growth ◽  
Processing Parameters ◽  
Abnormal Grain Growth ◽  
Strong Anisotropy ◽  
Grain Boundary Mobility ◽  
Zener Pinning ◽  
Cold Rolling Reduction ◽  
Mn Content ◽  
Aa5182 Alloy

The occurrence of abnormal grain growth (AGG) in AA5182 alloy during annealing imposes severe restrictions on processing parameters and deteriorates mechanical properties. In this work, we investigated the effect of chemical composition on the appearance of abnormal grain growth by varying Mg and Mn content in the range of composition limits for standard AA5182 alloy, 4.0-5.0% Mg, and 0.2-0.5% Mn, respectively. Thermo-mechanical processing of alloys included cold rolling with reductions ranging from 40 to 85%, followed by annealing in the temperature range from 350 to 520 °C. The results showed that the rise in alloying elements content drives the onset of abnormal grain growth toward higher temperatures. The increase in the cold rolling reduction degree promotes abnormal grain growth and lowers its onset temperature. Abnormal grain growth and grain boundary mobility showed strong anisotropy related to rod-like shape and alignment of Al6Mn(Fe) dispersoids through Zener pinning.

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