Effect of Frequency on the Iron Losses of 0.5% and 1.5% Si Nonoriented Electrical Steels

Campos, Marcos Flávio de; Yonamine, T.; Fukuhara, M.; Landgraf, Fernando José Gomes; Achete, Carlos A.; Missell, F.P.

doi:10.1109/tmag.2006.879897

Cited by 38 publications

(15 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Anomalous loss is treated here as a consequence of an anomalous field. Thus, it can be calculated in an analogue way to the traditional method for anomalous loss determination 11 …”

Section: Methodsmentioning

confidence: 99%

Anomalous loss hysteresis loop

et al. 2014

View full text Add to dashboard Cite

This paper discusses the anomalous loss behavior in two electrical steels types. Starting from a non oriented electrical steel coil, three groups of samples with different grain sizes were produced. Grain oriented steel samples were produced from a commercially available material. The experimental procedure was performed by means of magnetic properties measurements using an Epstein frame. A procedure to draw the hysteresis curve of the anomalous loss is proposed. The results reported that anomalous loss has a different behavior when the two electrical steel types are compared. In non oriented steels anomalous loss is concentrated at the low induction region. In grain oriented steels, a remarkable participation of high induction region is observed.

show abstract

“…Anomalous loss is treated here as a consequence of an anomalous field. Thus, it can be calculated in an analogue way to the traditional method for anomalous loss determination 11 …”

Section: Methodsmentioning

confidence: 99%

Anomalous loss hysteresis loop

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Such a linear dependence is also documented in literature, for example for coercivity and inverse grain size. 6 Magnetic loss and coercivity also have a linear dependence according to Ref. 7.…”

Section: B Magnetic Propertiesmentioning

confidence: 92%

Impact of the interaction of material production and mechanical processing on the magnetic properties of non-oriented electrical steel

et al. 2017

View full text Add to dashboard Cite

Thin laminations of non-grain oriented (NO) electrical steels form the magnetic core of rotating electrical machines. The magnetic properties of these laminations are therefore key elements for the efficiency of electric drives and need to be fully utilized. Ideally, high magnetization and low losses are realized over the entire polarization and frequency spectrum at reasonable production and processing costs. However, such an ideal material does not exist and thus, achievable magnetic properties need to be deduced from the respective application requirements. Parameters of the electrical steel such as lamination thickness, microstructure and texture affect the magnetic properties as well as their polarization and frequency dependence. These structural features represent possibilities to actively alter the magnetic properties, e.g., magnetization curve, magnetic loss or frequency dependence. This paper studies the influence of production and processing on the resulting magnetic properties of a 2.4 wt% Si electrical steel. Aim is to close the gap between production influence on the material properties and its resulting effect on the magnetization curves and losses at different frequencies with a strong focus on occurring interdependencies between production and mechanical processing. The material production is realized on an experimental processing route that comprises the steps of hot rolling, cold rolling, annealing and punching.

show abstract

“…According to Equation (4), reducing the steel thickness t causes a decrease of eddy current losses and contributes to minimize the total core losses, which is in agreement with the results obtained in this work. Eddy current losses are determined by flux per lamination and resistance of the lamination and they are, therefore, dependent on lamination thickness [14,31,32]. If steel thickness is reduced, eddy current losses and consequently total core losses are also decreased as observed in Figure 7.…”

Section: Influence Of Steel Thickness On Core Lossesmentioning

confidence: 99%

Influence of Thickness and Chemical Composition of Hot-Rolled Bands on the Final Microstructure and Magnetic Properties of Non-Oriented Electrical Steel Sheets Subjected to Two Different Decarburizing Atmospheres

Calvillo

Salinas‐Rodríguez

et al. 2017

Metals

View full text Add to dashboard Cite

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. In the present investigation, samples of a specific grade of a commercial hot-rolled grain non-oriented (GNO) electrical steel were taken from different steel batches to investigate the effects of thickness and chemical composition (C, Sn, Mn and Ti) in the hot-rolled material on the final microstructure and magnetic properties (core losses and magnetic permeability) resulting from two different decarburizing annealing cycles. Hot-rolled samples were processed by cold rolling, intermediate annealing, temper-rolling and final decarburization annealing using the same processing parameters. The experimental results show that the minimum core losses and maximum magnetic permeability are obtained with the thinnest steel thickness and the largest grain size. Increasing Sb and Mn contents, and reducing the C and Ti concentrations also improve the magnetic behavior of these steels. It was also found the effect of grain size on the magnetic behavior is more significant than the one of crystallographic texture.

show abstract

Effect of Frequency on the Iron Losses of 0.5% and 1.5% Si Nonoriented Electrical Steels

Cited by 38 publications

References 12 publications

Anomalous loss hysteresis loop

Anomalous loss hysteresis loop

Impact of the interaction of material production and mechanical processing on the magnetic properties of non-oriented electrical steel

Influence of Thickness and Chemical Composition of Hot-Rolled Bands on the Final Microstructure and Magnetic Properties of Non-Oriented Electrical Steel Sheets Subjected to Two Different Decarburizing Atmospheres

Contact Info

Product

Resources

About