An Investigation of Various Procedures for Analysis of Micromagnetic Barkhausen Signals for Nondestructive Evaluation of Steels

Sipahi, L.B.; Jiles, David

doi:10.1080/10589759308952793

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…The MBN has been found to be sensitive to the microstructure [1][2][3] and to the applied tensile stress [4][5][6] in ferromagnetic materials. For this reason, the MBN is now being widely used as a nondestructive technique for the characterization of these materials.…”

Section: Introductionmentioning

confidence: 99%

Modeling of the Barkhausen jump in low carbon steel

Benítez

Capó-Sánchez

Padovese³

2008

Journal of Applied Physics

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This work presents a model for the magnetic Barkhausen jump in low carbon content steels. The outcomes of the model evidence that the Barkhausen jump height depends on the coercive field of the pinning site and on the mean free path of the domain wall between pinning sites. These results are used to deduce the influence of the microstructural features and of the magnetizing parameters on the amplitude and duration of the Barkhausen jumps. In particular, a theoretical expression, establishing the dependence of the Barkhausen jump height on the carbon content and grain size, is obtained. The model also reveals the dependence of the Barkhausen jump on the applied frequency and amplitude. Theoretical and experimental results are presented and compared, being in good agreement.

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Section: Introductionmentioning

confidence: 99%

Modeling of the Barkhausen jump in low carbon steel

Benítez

Capó-Sánchez

Padovese³

2008

Journal of Applied Physics

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Barkhausen effect in ground steels

Gupta¹,

Zhang²,

Parakka³

1997

Acta Materialia

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Comprehensive analysis of Barkhausen emission spectra using pulse height analysis, frequency spectrum, and pulse wave form analysis

Sipahi

Jiles

Chandler

1993

Journal of Applied Physics

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The dependence of magnetic Barkhausen emissions (MBE) upon both field excitation and detection frequencies and excitation wave form was studied in order to investigate two of several crucial factors which affect the emissions. Sinusoidal, triangular, and square wave forms were used to generate the MBE and the pulse height spectra, frequency spectra, and pulse wave forms of these signals were analyzed. The frequency spectra of sinusoidal and triangular alternating field excitations showed similar behavior but the spectrum under square wave excitation was different due to the existence of high frequency components during square wave switching. As yet, no common standard has been agreed upon for parameterization and representation of Barkhausen signals. It appears from this work that field excitation wave form and frequency should define the inputs, while detection frequency range, pulse height spectrum, frequency spectrum, and emitted pulse wave form analysis should be used to quantify the output. Comprehensive analysis of Barkhausen emission spectra using pulse height analysis, frequency spectrum, and pulse wave form analysis The dependence of magnetic Barkhausen emissions (MBE) upon both field excitation and detection frequencies and excitation wave form was studied in order to investigate two of several crucial factors which affect the emissions. Sinusoidal, triangular, and square wave forms were used to generate the MBE and the pulse height spectra, frequency spectra, and pulse wave forms of these signals were analyzed. The frequency spectra of sinusoidal and triangular alternating field excitations showed similar behavior but the spectrum under square wave excitation was different due to the esistence of high frequency components during square wave switching. As yet, no common standard has been agreed upon for parameterization and representation of Barkhausen signals. It appears from this work that field excitation wave form and frequency should define tho inputs, while detection frequency range, pulse height spectrum, frequency sptlctrum, and emitted pulse wave form analysis should be used to quantify the output. Keywords

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An Investigation of Various Procedures for Analysis of Micromagnetic Barkhausen Signals for Nondestructive Evaluation of Steels

Cited by 5 publications

References 16 publications

Modeling of the Barkhausen jump in low carbon steel

Modeling of the Barkhausen jump in low carbon steel

Barkhausen effect in ground steels

Comprehensive analysis of Barkhausen emission spectra using pulse height analysis, frequency spectrum, and pulse wave form analysis

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