Ultrathin-gauge high silicon non-oriented electrical steel with high permeability and low core loss fabricated by optimized two-stage cold rolling method

2021 ◽  
pp. 111593
Author(s):  
Zhi-hong Li ◽  
Song-kang Xie ◽  
Guo-dong Wang ◽  
Hai-tao Liu
Keyword(s):  
Cold Rolling ◽  
Electrical Steel ◽  
Core Loss ◽  
High Permeability ◽  
Two Stage ◽  
Rolling Method ◽  
High Silicon

scholarly journals {001}(210) Texture Development by Two-stage Cold Rolling Method in Non-oriented Electrical Steel.

1997 ◽  
Vol 37 (12) ◽  
pp. 1263-1268 ◽  
Author(s):  
Minoru Takashima ◽  
Michiro Komatsubara ◽  
Nobuyuki Morito
Keyword(s):  
Cold Rolling ◽  
Electrical Steel ◽  
Texture Development ◽  
Two Stage ◽  
Rolling Method

Effect of Inter-Pass Ageing during Cold Rolling on Magnetic Properties of Fe-3%Si

2013 ◽  
Vol 753 ◽  
pp. 522-525
Author(s):  
Dirceni Souza Costa Amorim ◽  
Marco Antônio Cunha ◽  
Dogoberto Brandão Santos ◽  
João Henrique Brandão ◽  
Berenice Mendonça Gonzalez
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Magnetic Properties ◽  
Yield Strength ◽  
Cold Rolling ◽  
Electrical Steel ◽  
Core Loss ◽  
Primary Recrystallization ◽  
High Permeability ◽  
Strain Ageing

The effects of inter-pass ageing temperature during cold rolling on structure, magnetic properties and mechanical properties of high permeability grain oriented electrical steel was studied. The samples were processed in a single-stage cold rolling to 0.27 mm thickness, with 88 % reduction, without and with inter-pass ageing treatment in order to determine the magnetic properties. To determine the changes in mechanical properties due to strain ageing, the samples underwent overlapped ageing, after pre-strain by rolling, under the same conditions of inter-pass ageing and then were subjected to tensile test. The effect of strain ageing was more pronounced in the thickness of 0.7 mm and the largest variation in yield strength was at 200°C in all evaluated thicknesses. At this temperature the largest amount of {110} orientation after primary recrystallization was also observed, as well as the lowest final grain size and consequently the best results of core loss. The magnetic induction had almost no alterations.

Fe-6.5wt.%Si High Silicon Steel Sheets Produced by Cold Rolling

2010 ◽  
Vol 638-642 ◽  
pp. 1428-1433 ◽  
Author(s):  
Feng Ye ◽  
Y.F. Liang ◽  
Y.L. Wang ◽  
Jun Pin Lin ◽  
G.L. Chen
Keyword(s):  
Cold Rolling ◽  
Room Temperature ◽  
Thin Sheet ◽  
Silicon Steel ◽  
Magnetic Devices ◽  
Steel Sheets ◽  
High Silicon Steel ◽  
Rolling Method ◽  
High Silicon ◽  
Si Content

High silicon steel with Si content of 6.5wt.% is perspective to be applied in magnetic devices at high frequencies. It is very hard to produce Fe-6.5wt%Si alloy thin sheet by conventional hot-cold rolling method because of its embrittlement at room temperature resulted from the formation of intermetallic phases like B2 and D03. In this paper, embrittlement mechanism, rolling processes, and magnetic properties for the cold rolled Fe-6.5wt.% Si alloy sheets are discussed. Our study indicates that thermal mechanical treatments can improve the ductility of the Fe-6.5wt.%Si alloy. The Fe-6.5wt.%Si alloy sheets of 0.05 mm thickness can be successfully obtained after hot-cold rolling and heat treatments. Lamination pieces can be punched directly from the sheets. Tensile strength as high as 1048MPa and elongation over 3% were measured at room temperature.

On the Effect of Texture in Experimental Grades of High-Silicon Electrical Steel

2007 ◽  
Vol 539-543 ◽  
pp. 3341-3346
Author(s):  
Yvan Houbaert ◽  
Tanya Ros-Yáñez ◽  
Pablo Rodriguez-Calvillo ◽  
José Barros ◽  
Leo Kestens
Keyword(s):  
Cold Rolling ◽  
Electrical Steel ◽  
Texture Evolution ◽  
Diffusion Annealing ◽  
Texture Parameter ◽  
Al Content ◽  
First Results ◽  
High Silicon ◽  
Hot And Cold Rolling

Crystallographic texture has an important effect on the magnetic quality of electrical steel: a specific texture parameter A is defined and used to estimate the magnetic quality of texture components. It is shown that obtaining the best possible texture in non oriented electrical steel can reduce the losses with 1,5 W/kg. Two production schemes for high silicon electrical steel are described: a conventional processing through hot and cold rolling with adequate temperatures and cooling rates and an immersion-diffusion process by hot dipping in a Si- and Al-rich bath followed by diffusion annealing. The texture evolution in these experimental materials is under study and first results are reported for conventional alloys (rolling procedure) and for immersion-diffusion alloys, which are annealed after dipping in order to obtain a controlled concentration gradient with high Si and/or Al at the surface or a homogeneous Si and/or Al-content over the thickness.

Microstructure, precipitates and mechanical properties of Inconel 718 alloy produced by two-stage cold rolling method

2020 ◽  
Vol 793 ◽  
pp. 139860 ◽  
Author(s):  
Rong Ran ◽  
Yang Wang ◽  
Yuan-xiang Zhang ◽  
Feng Fang ◽  
He-song Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cold Rolling ◽  
Inconel 718 ◽  
Two Stage ◽  
Inconel 718 Alloy ◽  
Rolling Method

ARMCO TRAN-COR ELECTRICAL STEEL GRADE H-0

Alloy Digest ◽  
1990 ◽  
Vol 39 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Grain Orientation ◽  
Electrical Steel ◽  
Core Loss ◽  
Heat Treating ◽  
Steel Grade ◽  
Advanced Materials ◽  
Electrical Steels

Abstract Armco Tran-Cor H-0 Electrical Steel, available in coils 0.009 (0.23 mm) thickness, offers an outstanding degree of grain orientation with resultant far lower core loss than possible with conventional grain-oriented electrical steels. It is used for transformer cores. This datasheet provides information on physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and surface treatment. Filing Code: Fe-92. Producer or source: Armco Advanced Materials Corporation.

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