Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application

Ouyang, Gaoyuan; Chen, Xi; Liang, Yongfeng; Macziewski, Chad; Cui, Jun

doi:10.1016/j.jmmm.2019.02.089

Cited by 277 publications

(146 citation statements)

References 159 publications

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“…It is necessary to mention that, with exception of some materials, many materials have a µ r very close to unity [42]. The magnetic response of a material is commonly described by µ r , and often, in ferromagnetic and ferrimagnetic materials this is a frequency function (complex permeability) [42], [45], [49].…”

Section: Fundamentals Of Magnetic Materialsmentioning

confidence: 99%

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Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

et al. 2020

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Currently, the design of power electronic converters (PECs) is in a stage which looks increasing its efficiency and reducing its dimensions from basic topologies through precise analysis of losses in each device that conforms. Although there have been important advances to improve the active components of PECs, passive components, particularly inductors, have changed very little since several decades ago, and those begin a limiting factor, when a high efficiency at very high power and switching frequency, are required. It is for the foregoing that this paper reviews new ferromagnetic materials to construct inductors and achieve a substantial increasing in efficiency through magnetic permeability and hysteresis improvements. Therefore, the main objective of this work is to position the reader in the state of the art of advanced ferromagnetic materials used in PECs. Details about how they are constructed and qualitative comparison of their dynamic behavior are provided. Also, estimation methods of energy losses, applications for different types of material, and its influence on the performance of some basic PECs are presented. INDEX TERMS Amorphous magnetic materials, magnetic materials, power conversion, soft magnetic materials.

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Section: Fundamentals Of Magnetic Materialsmentioning

confidence: 99%

“…In this kind of cores, the high content of Si and Al reduces the saturation magnetic flux (∼1.2 T). Therefore, it is not frequently used in power transformer applications [49].…”

Section: B Powder Coresmentioning

confidence: 99%

Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

et al. 2020

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“…[1,6] One of the additional potential drivers of these techniques is the ability to produce new or exotic alloys that previously were ''uncastable'' by conventional continuous casting. These alloys included high manganese TWIP/TRIP grades, [1,[7][8][9][10] high silicon electrical steels, [11][12][13] high carbon energy efficient sheets, [14] as well as ultra-thin HSLA grades. [15] However, with the exception to the TWIP/TRIP, these have been lab/pilot scale in the majority.…”

Section: Introductionmentioning

confidence: 99%

Near Net Shape Casting: Is It Possible to Cast Too Thin?

Slater

Davis

2020

Metall Mater Trans B

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With increased efforts across the steel industry to produce steel in more economical ways, interest in near net shape casting has increased. Although much has been reported on the production of exotic alloys via these methods, to make the investment in new casting equipment, capability to produce current high value steels by these methods would derisk the capital expenditure. This study assesses the production of a dual phase steel (DP800) by belt casting and compared to that of conventional continuous casting. Although a drop in yield and tensile strength was seen in the belt cast-produced material, the increased elongation allowed for a comparable/improved UTS × elongation factor. A combination of in situ dendrite measurements, thermal modeling, and lab-scale belt casting has allowed insight into the relationship between cast thickness and final band spacing. The inherent lack of deformation of near net shape casting results in coarser band spacing and is not accounted for by the refinement of the secondary arm spacing caused by the faster solidification rates. This limits the strength achievable for a given martensite volume fraction. This has been predicted across the full range of casting thicknesses (1 to 230 mm) and good agreement has been shown with experimental results.

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“…Fe-6.5wt.%Si alloy exhibits excellent soft magnetic properties, such as high permeability, low coercivity, and near-zero magnetostriction, which result in favorable application of this alloy in high-frequency transformers [1,2]. However, its intrinsic brittleness and poor formability resulting from the ordered phases (B2 and D0 3 ordered structures) limit the fabrication of Fe-6.5wt.%Si alloy sheets by the conventional casting-rolling process, which hinders the development and application of the alloy [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Serrated Flow Behavior of Hot-Rolled Fe-6.5wt.%Si Sheet with Layered Structure

Shi

Liang

Liu

et al. 2019

Metals

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The microstructures and mechanical properties of the hot-rolled Fe-6.5wt.%Si sheet are analyzed. The microstructure of the hot-rolled sheet is layered along the thickness direction. The surface exhibits fine and equiaxed grains, whereas the center part shows coarse and elongated grains with a <101> fiber texture along the rolling direction. Serrated flow behavior is observed during tensile deformation of both the hot-rolled sheet and its center samples at 350 °C; thus, the serrated flow of the hot-rolled sheet is mainly attributed to the serration of the center part. The analyses of dislocation configurations, ordered structures, and crystal orientation show that the serrated flow behavior results from the interaction of solutes with mobile dislocations. Mobile dislocations are pinned by combining parallel forest dislocations with the pipe diffusion of solution atoms. This study provides a new perspective for the deformation mechanism of the Fe-6.5wt.%Si alloy.

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Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application

Cited by 277 publications

References 159 publications

Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

Near Net Shape Casting: Is It Possible to Cast Too Thin?

Serrated Flow Behavior of Hot-Rolled Fe-6.5wt.%Si Sheet with Layered Structure

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Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application

Cited by 277 publications

References 159 publications

Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

Advanced Ferromagnetic Materials in Power Electronic Converters: A State of the Art

Near Net Shape Casting: Is It Possible to Cast Too Thin?

Serrated Flow Behavior of Hot-Rolled Fe-6.5wt.%Si Sheet with Layered Structure

Contact Info

Product

Resources

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Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application