The Precipitation of Copper in the Non-Oriental Electrical Steel

2005 ◽  
Vol 475-479 ◽  
pp. 2279-2282 ◽  
Author(s):  
Ben Xu ◽  
Youguo Li ◽  
Yong Feng Gong
Keyword(s):  
Magnetic Properties ◽  
Hot Rolling ◽  
Electrical Steel ◽  
Texture Development ◽  
Steel Sheets ◽  
Copper Addition ◽  
Normalization Process

The precipitation of copper in the non-oriental electrical steel was studied in this article. These precipitation particles, which influenced both the texture development and the magnetic properties of the steel sheets, appeared in the hot-rolling strips and grew up in the later normalization process. Their composition, morphology and crystallography had been investigated using TEM. Differed from the MnS and AlN that studied in the previous papers, these precipitate particles were found to be CuAl2. It suggested that these particles might stimulate the recrystallization nucleation of the {110} oriented grains and restrain the development of {111} oriented grains in the sheet of non-oriented electrical steel. This might be another explanation to the improvement on magnetic properties of the non-oriental electrical steel containing copper addition.

Magnetic Barkhausen Noise Characterization of the Recrystallization of a Non-Oriented Electrical Steel after Cold Rolling at Different Angles to the Hot Rolling Direction

2018 ◽  
Vol 941 ◽  
pp. 274-279
Author(s):  
You Liang He ◽  
Mehdi Mehdi ◽  
Erik J. Hilinski ◽  
Afsaneh Edrisy
Keyword(s):  
Magnetic Properties ◽  
Cold Rolling ◽  
Hot Rolling ◽  
Electrical Steel ◽  
Electron Backscatter Diffraction ◽  
Rolling Direction ◽  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Final Annealing ◽  
Steel Sheets

Non-oriented electrical steel sheets are the most commonly used material for the manufacturing of magnetic cores for electric motors and generators. The microstructure and texture of the steel after final annealing have a significant effect on the magnetic properties of the lamination core. To investigate the effect of cold rolling and annealing on the magnetic properties of the steel sheets, a 0.9 wt% Si non-oriented electrical steel was cold rolled at different angles to the hot rolling direction (HRD) and annealed at various temperatures (600°C to 750°C) to produce dissimilar microstructures. The progress of recrystallization was characterized by electron backscatter diffraction (EBSD), and the magnetic response of the steel at various stages of recrystallization was evaluated by magnetic Barkhausen noise (MBN). A number of MBN parameters, e.g. the root mean square, the smoothed envelope, the peak, the full width at half maximum (FWHM) of the envelope, the time integral of the MBN signals and the MBN energy, were analyzed with respect to the fraction of recrystallization during annealing. The results show that cold rolling at different angles to the hot rolling direction induces various deformation microstructures and stored energies, which, in turn, lead to considerably different recrystallization behaviours during annealing. The difference in recrystallization of these materials is also reflected in the MBN parameters.

scholarly journals Anisotropy of Magnetic Properties in Non-oriented Electrical Steel Sheets

1989 ◽  
Vol 11 (2-4) ◽  
pp. 159-170 ◽  
Author(s):  
M. Shiozaki ◽  
Y. Kurosaki
Keyword(s):  
Magnetic Properties ◽  
Magnetic Induction ◽  
Crystallographic Orientation ◽  
Electrical Steel ◽  
Core Loss ◽  
Fluorescent Lamp ◽  
Steel Sheets ◽  
The Core ◽  
Texture Change ◽  
Electrical Steel Sheets

The anisotropy of magnetic properties in non-oriented electrical steel sheets can be evaluated by measuring Epstein specimens in the radial directions. The magnetic properties measured on ring cores are practically equal to the approximate values of magnetic properties determined by Epstein specimens in the radial directions. Non-oriented electrical steel sheets with anisotropy are not desirable for motors but are suitable for transformers and fluorescent lamp ballasts. The core loss and magnetic induction as measured with ring specimens are better with non-oriented electrical steel sheets with anisotropy than with non-oriented electrical steel sheets with random crystallographic orientation. This phenomenon depends on the texture change of the product.

scholarly journals Stress Dependence of Magnetic Properties of Non-oriented Electrical Steel Sheets

2011 ◽  
Vol 35 (3) ◽  
pp. 291-296 ◽  
Author(s):  
H. Takahara ◽  
S. Okumura ◽  
S. Kabashima ◽  
S. Hayashi ◽  
C. Kaido
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Stress Dependence ◽  
Steel Sheets ◽  
Electrical Steel Sheets

Effects of Different Alloy Composition on Magnetic Properties of Non-Oriented Electrical Steel

2013 ◽  
Vol 423-426 ◽  
pp. 286-289 ◽  
Author(s):  
Chang Gui Pei ◽  
Pei Kang Bai ◽  
Zhang Xia Guo
Keyword(s):  
Grain Size ◽  
Magnetic Properties ◽  
Hot Rolling ◽  
Magnetic Induction ◽  
Electrical Steel ◽  
Alloy Composition ◽  
Iron Loss ◽  
Steel Alloy ◽  
Effect Of Hot Rolling

Different alloy composition has a significant effect on the magnetic properties of non-oriented electrical steel . Alloy composition effected recrystallization of product through the effect of hot rolling plate grain size, then effected magnetic properties. Supposing everything other component and process remain equal, the iron loss significantly decreased and magnetic induction deterioration was not obvious with the increase of Manganese element and the grain size increases.

Effects of magnetic properties of nonoriented electrical steel sheets on motor efficiency

1990 ◽  
Vol 12 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Atsuhito Honda ◽  
Bunjiro Fukuda ◽  
Isamu Ohyama ◽  
Yoshio Mine
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Steel Sheets ◽  
Motor Efficiency ◽  
Electrical Steel Sheets
Sign in / Sign up

Export Citation Format

Share Document