Methods for texture improvement in electrical steels

Campos, Marcos Flávio de

doi:10.15199/48.2019.07.02

Cited by 3 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The NO silicon steel possesses a significant level of magnetic anisotropy [6][7][8][9]. Several models of magnetic anisotropy have been proposed for NO silicon steel.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Level Validation of an Anisotropic Hysteresis Model for Non-Oriented Electrical Steel Sheets

et al. 2022

View full text Add to dashboard Cite

“…The NO silicon steel possesses a significant level of magnetic anisotropy [6][7][8][9]. Several models of magnetic anisotropy have been proposed for NO silicon steel.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Level Validation of an Anisotropic Hysteresis Model for Non-Oriented Electrical Steel Sheets

et al. 2022

View full text Add to dashboard Cite

“…The intrinsic microstructures (grain boundaries, grain orientations and grain sizes) of various ferromagnetic materials are different, thus leading to the completely different magnetic properties of the materials. During the preparation of the material, a variety of methods can be used to adjust the microstructure and improve the magnetic properties of the material, such as crystallographic texture enhancement [ 20 ], controlling cooling speed [ 21 ], and adjustment with a strip steel casting process [ 22 ]. MBN is sensitive to microstructure parameters, including grain size [ 23 ], grain boundary [ 24 ], grain orientation [ 25 ] and carbon content [ 26 ], and also has high sensitivity to stress and residual stress [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Magnetocrystalline Anisotropy of Typical Materials Using MBN Technology

Wang

Liu

2021

Sensors

View full text Add to dashboard Cite

Magnetic Barkhausen noise (MBN) signals in the stage from saturation to remanence of the hysteresis loop are closely correlated with magnetocrystalline anisotropy energy. MBN events in this stage are related to the nucleation and growth of reverse domains, and mainly affected by the crystallographic textures of materials. This paper aims to explore the angle-dependent magnetocrystalline anisotropy energy. Based on the consideration of macroscopic magnetic anisotropy, with the concept of coordinate transformation, a model was firstly established to simulate the magnetocrystalline anisotropy energy (MCE) of a given material. Secondly, the MBN signals in different directions were tested with a constructed experimental system and the characteristic parameters extracted from the corresponding stage were used to evaluate the magnetic anisotropy of the material. Finally, the microstructures of 4 materials were observed with a metallographic microscope. The microtextures of local areas were measured with the electron backscatter diffraction (EBSD) technique. The MBN experimental results obtained under different detection parameters showed significant differences. The optimal MBN detection parameters suitable for magnetic anisotropy research were determined and the experimental results were consistent with the results of MCE model. The study indicated that MBN technology was applicable to evaluate the MCE of pipeline steel and oriented silicon steel, especially pipeline steel.

show abstract

Achievements in Micromagnetic Techniques of Steel Plastic Stage Evaluation

Campos

2020

Advances in Materials Science

View full text Add to dashboard Cite

The investigation of plastic deformation and residual stress by non-destructive methods is a subject of large relevance for the industry. In this article, the difference between plastic and elastic deformation is discussed, as well as their effects on magnetic measurements, as hysteresis curve and Magnetic Barkhausen Noise. The residual stress data can be obtained with magnetic measurements and also by the hole drilling method and x-ray diffraction measurements. The residual stress level obtained by these three different methods is different, because these three techniques evaluate the sample in different depths. Effects of crystallographic texture on residual stress are also discussed. The magnetoelastic term should be included in micromagnetic methods for residual stress evaluation. It is discussed how the micromagnetic energy Hamiltonian should be expressed in order to evaluate elastic deformation. Plastic deformation can be accounted in micromagnetic models as a term that increases the coercive field in soft magnetic materials as the steels are.

show abstract

Methods for texture improvement in electrical steels

Cited by 3 publications

References 39 publications

Finite Element Level Validation of an Anisotropic Hysteresis Model for Non-Oriented Electrical Steel Sheets

Finite Element Level Validation of an Anisotropic Hysteresis Model for Non-Oriented Electrical Steel Sheets

Evaluation of the Magnetocrystalline Anisotropy of Typical Materials Using MBN Technology

Achievements in Micromagnetic Techniques of Steel Plastic Stage Evaluation

Contact Info

Product

Resources

About