Energy-efficient steels for motor laminations

Werner, Felicitas; Jaffee, R.I.

doi:10.1007/bf02648621

Cited by 16 publications

(11 citation statements)

References 24 publications

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“…1 and 2 there is no aging if the carbon content is very low (o0.0025% C) confirming Ref. [1]. A very important result is obtained: all the aging effect is inside the P h component.…”

Section: Loss Separation and The Aging Effectsupporting

confidence: 76%

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Consequences of magnetic aging for iron losses in electrical steels

Campos¹,

Emura

Landgraf

2006

Journal of Magnetism and Magnetic Materials

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“…1 and 2 there is no aging if the carbon content is very low (o0.0025% C) confirming Ref. [1]. A very important result is obtained: all the aging effect is inside the P h component.…”

Section: Loss Separation and The Aging Effectsupporting

confidence: 76%

“…During the life of electrical steels, a phenomenon named magnetic aging [1][2][3][4][5] may occur. This effect is due to microstructural changes: carbon and/or nitrogen in solid solution precipitate as iron carbides or nitrides, respectively, increasing the losses [2,3].…”

Section: Introductionmentioning

confidence: 99%

Consequences of magnetic aging for iron losses in electrical steels

Campos¹,

Emura

Landgraf

2006

Journal of Magnetism and Magnetic Materials

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“…The most promising materials for these applications remain steels to which high contents of silicon are added. [1][2][3] The addition of silicon contributes to the reduction of magnetic losses associated with eddy currents, by increasing the electric resistivity of the material. However, the development of specific textures can enhance the ease of magnetisation.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of silicon steels

Diéz-Ercilla¹,

Ros-Yanez²,

Petrov³

et al. 2004

Corrosion Engineering, Science and Technology

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The oxidation behaviour of a series of high silicon steels was studied by means of optical microscopy and scanning electron microscopy. The samples were cast with amounts of silicon that ranged from 3 . 3 to 11 . 6 wt-%. The experimental samples were cut from the ingots, polished and cleaned before placing them in an electric furnace at temperatures that varied from 1000 to 1230uC for a total time of 50 min. Specimens were then mounted and polished for examination. The analysis of X-ray spectra taken in different regions of the oxide crust indicated the presence of different oxide species. It was found that growth of the layer depended on the temperature at which the treatment was made, and on the amount of silicon in the steel, as it was found that the diffusion of silicon to form fayalite reduced the rate of growth.CEST/2141

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“…Thus, the strips were subjected to recrystallization heat treatment followed by a decarburization treatment.This treatment helps to increase non-oriented grains. [7,8] Decarburization treatment was conducted at 830 0 C temperature, and the recrystallization at 940 0 C .…”

Section: The Microstructure and Heat Treatment Influence Over The Magmentioning

confidence: 99%

Study on Influence of Microstructure and Thermal Treatment on Magnetic Losses from Non-Oriented Silicon Electrical Steel

Stoian

Enescu

Bratu

et al. 2017

Scientific Bulletin of Valahia University - Materials and Mechanics

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Non/oriented electrical sheets are sheets tailored to produce specific properties and are produced from Fe-Si or Fe-Si-Al alloys. Non-oriented electrical steel sheets are incorporated into a wide range of equipment, from the simplest domestic appliances to hybrid and pure electric vehicles. In studying about the magnetic, there have a lot of method can be used for the different experiment requirement such as measuring magnetic flux, nominal loss and other objectives.During electrical steel processing, there are usually small variations in both chemical composition and thickness in the hot-rolled material that may lead to different magnetic properties for the same steel grade. Therefore, it is of great importance to know the effects of such variations on the final microstructure and magnetic properties of these steels. The purpose of this work was to study microstructural changes of the bands investigated during processing occurring siliceous strips with non-oriented grains. The second aim was to study the influence of grain size on the total magnetic losses at 1.0 T and 1.5 T. Materials 10 rolls intended to be processed into quality electrical steel M400-50A (according to EN 100027-1) were analyzed with metallographic microscope Neophet 32 and the magnetic characteristics was made with Epstein frame according IEC 6040/4-2, with an exiting current frequency of 50Hz at 1.5T and 1.0T induction after aging treatment of 225°C for 24 hours. Sample for light microscopy observation were prepared by polishing and etching in 5% Nital.

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Energy-efficient steels for motor laminations

Cited by 16 publications

References 24 publications

Consequences of magnetic aging for iron losses in electrical steels

Consequences of magnetic aging for iron losses in electrical steels

Oxidation of silicon steels

Study on Influence of Microstructure and Thermal Treatment on Magnetic Losses from Non-Oriented Silicon Electrical Steel

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