The effect of microstructure and applied stress on magnetic Barkhausen emission in induction hardened steel

Blaow, Mohamed M.; Evans, J.T.; Shaw, Brian

doi:10.1007/s10853-006-0631-5

Cited by 41 publications

(25 citation statements)

References 28 publications

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“…Barkhausen noise and coercive field are linked to each other [9]. Barkhausen noise maximum intensity occur for values of magnetic field close to the coercive field, but the magnetoacoustic emission maxima are observed for the "knee" regions of the hysteresis loops where the creation/annihilation of 90 • domain walls take place [34].…”

Section: Resultsmentioning

confidence: 98%

“…Domain walls are pinned temporarily by microstructural barriers to disable their motion, and then they are released abruptly with an increase of the magnetic field. Grain boundaries, precipitates, dislocation tangles [9] and voids [10] are microstructural barriers hindering domain walls movement. It was also suggested that irreversible rotation of the domain through angles other than 180 • can also contribute to the MAE signal [11].…”

Section: Introductionmentioning

confidence: 99%

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Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

2017

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The paper describes an application of nondestructive volumetric magnetic and ultrasonic techniques for evaluation of the selected mechanical parameter variations of P91 steel having direct influence on its suitability for further use in critical components used in power plants. Two different types of deformation processes were carried out. First, a series of the P91 steel specimens was subjected to creep and second, one to plastic deformation in order to achieve the material with an increasing strain level up to 10%. Subsequently, non-destructive and destructive tests were performed. Magnetic methods based on measurements of magnetoacoustic emission and magnetic hysteresis loop changes as well as the ultrasonic method based on acoustic birefringence measurements, were applied. Finally, the static tensile tests were carried out in order to evaluate the mechanical parameters. It is shown that some relationships between the selected parameters coming from the non-destructive and destructive tests may be formulated.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

2017

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“…In some studies, different stress sensitivities of the BN signal have also been reported [10,11]. This may be because of the different steel composition, heat treatment and BN measuring equipment used.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been carried out to study the effect of bending on the BN phenomena [11,12,[20][21][22]. In one example of these bending tests, the specimen acts as a cantilever.…”

Section: Introductionmentioning

confidence: 99%

“…In one example of these bending tests, the specimen acts as a cantilever. In the studies [11,12,[20][21][22] made with this method, the specimens were mounted in such a way that the BN measurements could be carried out from both sides of the sample, from the surface under tension and from the opposite surface under compression. The bending moment was incrementally applied by increasing the mass on the free end of the cantilever.…”

Section: Introductionmentioning

confidence: 99%

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Barkhausen noise characterisation during elastic bending and tensile-compression loading of case-hardened and tempered samples

Santa-aho

Vippola

Saarinen³

et al. 2012

J Mater Sci

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This study examined the Barkhausen noise (BN) response of carburising case-hardened steel with varying tempering stages. The test material was loaded in bending and in alternating loading. The aim of the study was to obtain relevant multiparameter BN data from different loading conditions and to investigate the effect of applied stress on the BN response. The test bar series was made from casehardened steel. Different tempering parameters were used to vary the surface hardness and the surface residual stresses of the studied series of test bars. In the bending tests, the samples were subjected to incrementally applied loading in the purely elastic deformation region. In addition, uniaxial stepwise loading with tensile and compressive stress was applied to selected samples simultaneously with the BN measurements. The BN measurements were performed under different loading conditions along with X-ray diffraction strain measurements in bending. The results revealed linear behaviour between the reciprocal root mean square value and the stress values obtained with strain gages and X-ray diffraction for the tempered samples.

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Damage Identification Supported by Nondestructive Testing Techniques

Kowalewski

Ustrzycka

Szymczak

et al. 2019

Plasticity, Damage and Fracture in Advanced Materials

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The effect of microstructure and applied stress on magnetic Barkhausen emission in induction hardened steel

Cited by 41 publications

References 28 publications

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

Barkhausen noise characterisation during elastic bending and tensile-compression loading of case-hardened and tempered samples

Damage Identification Supported by Nondestructive Testing Techniques

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