Characterization of angular dependence of macroscopic magnetic properties in ASTM 36 steel using magnetic Barkhausen noise

Benítez, José Alberto Pérez; Capó-Sánchez, J.; Padovese, Linilson Rodrigues

doi:10.1016/j.ndteint.2006.12.009

Cited by 16 publications

(8 citation statements)

References 14 publications

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“…Other studies also detected the change in the induced magnetic field due to the rotation of the samples, indicating that magnetization curves suffer interference from the plastic deformation, which causes magnetic anisotropy [17,20,27,28,32,41]. Figure 4 also shows that the measures acquired at the center of the samples have peak values for angles of around 225 • .…”

Section: Resultsmentioning

confidence: 84%

“…These approaches can also be used in nondestructive tests; However, the test areas of the samples under study should have larger dimensions. For the techniques based on the Barkhausen noise signal that have been applied for the same purpose, sample sizes from 50.4 to 100 cm 2 have been used [17,21,23,[26][27][28][29]33]. …”

Section: Methodsmentioning

confidence: 99%

“…Some works have proposed new nondestructive techniques based on Magnetic Barkhausen Noise (MBN) signals to determine the direction of the macroscopic magnetic easy axis. These techniques also offer the possibility of obtaining real-time parameters that quantify the magnetic anisotropy of the material under study [21,27,28]. Caldas-Morgan et al [27] proposed a new technique to study the anisotropy based on angular MBN measurements that is referred to as the Continuous Rotational Barkhausen Method (CRBM).…”

Section: Introductionmentioning

confidence: 99%

“…Their technique proved to be faster than the classic MBN technique. Capo [21] and Perez-Benitez [28] correlated uniaxial stress with the magnetic easy axis in ASTM 36 steel by the magnetic Barkhausen noise, and they noted a continuous rotation of the magnetic easy axis and the angular dependence of the coercivity and permeability.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Silva

Paula

Leite

et al. 2016

Metals

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Conventional manufacturing processes cause plastic deformation that leads to magnetic anisotropy in processed materials. A deeper understanding of materials characterization under rotational magnetization enables engineers to optimize the overall volume, mass, and performance of devices such as electrical machines in industry. Therefore, it is important to find the magnetic easy direction of the magnetic domains in a simple and straightforward manner. The Magnetic easy direction can be obtained through destructive tests such as the Epstein frame method and the Single Sheet Tester by taking measurements in regions of irreversible magnetization usually called domains. In the present work, samples of rolled SAE 1045 steel (formed by perlite and ferrite microstructures) were submitted to induced magnetic fields in the reversibility region of magnetic domains to detect the magnetic easy direction. The magnetic fields were applied to circular samples with different thicknesses and angles varying from 0 • to 360 • with steps of 45 • . A square sample with a fixed thickness was also tested. The results showed that the proposed non-destructive approach is promising to evaluate the magnetic anisotropy in steels independently of the geometry of the sample. The region studied presented low induction losses and was affected by magnetic anisotropy, which did not occur in other works that only took into account regions of high induction losses.

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Section: Resultsmentioning

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Silva

Paula

Leite

et al. 2016

Metals

View full text Add to dashboard Cite

show abstract

“…There is no method for the separation of superimposed influence of the different sample overhang, which should be taken into account at any measurement of large-sized samples [20,21]. With the overhang increase the measurement error should accumulate because of the different magnetization conditions into the sample width and depth.…”

Section: Discussionmentioning

confidence: 99%

Applicability of local magnetic measurements

et al. 2009

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Self-Calibrating Stress Measurement System Based on Multidirectional Barkhausen Noise Measurements

Piotrowski,

Chmielewski

2024

J Nondestruct Eval

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The system presented in this paper enables automatization of the two-dimensional calibration process (determination of Barkhausen noise (BN) intensity dependence on in-plane components of strain). Then, using dedicated software created by the authors in LabVIEW environment, and with the help of two dimensional calibration data one can effectively determine strain and stress distribution i.e. magnitude and orientation of main strain/stress components relative to measurement direction. BN signal measurements are performed using an advanced, multidirectional Barkhausen noise (BN) measuring sensor and a measurement system dedicated for cooperation with it. The system uses a robust algorithm for the strain components determination based on calibration surfaces, instead of usually applied curves, thus taking the influence of normal strain component directly into account instead of treating it as a correction factor (if not completely neglecting). The originality of the system arises also from the fact that this is the first BN measurement system that is self-calibrating (i.e. automatically loads the calibration sample in a pre-programmed way, performs BN signal measurements and calculates calibration planes), provided that the user possesses enough of the investigated material for calibration sample preparation.

show abstract

Characterization of angular dependence of macroscopic magnetic properties in ASTM 36 steel using magnetic Barkhausen noise

Cited by 16 publications

References 14 publications

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Detection of the Magnetic Easy Direction in Steels Using Induced Magnetic Fields

Applicability of local magnetic measurements

Self-Calibrating Stress Measurement System Based on Multidirectional Barkhausen Noise Measurements

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