Results 161 to 170 of about 2,523,401 (193)

Characterization of Steel Microstructures by Magnetic Barkhausen Noise Technique

2011
Optimization and control of the microstructure is vital for improving performance and service life of the steel components. Development of non-destructive techniques for microstructure characterization has been a challenging task for many years.
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Magnetic viscosity and barkhausen noise in NdFeB-type permanent magnets

Journal of Magnetism and Magnetic Materials, 1997
Abstract The Barkhausen noise and magnetic viscosity in sintered and melt-quenched needles of anisotropic NdFeB-type magnets are examined. In the sintered magnet, the time integral of the Barkhausen signal during magnetic viscosity is shown to correlate with the change in the bulk magnetisation as measured using a vibrating sample magnetometer.
P.J. Thompson, R. Street
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Magnetic Barkhausen noise: stress-dependent mechanisms in steel

IEEE Transactions on Magnetics, 1996
Angular dependent magnetic Barkhausen noise energy signal measurements were performed on two similar pipeline steel samples up to tensile stresses of 330 MPa. Variations between the stress dependence of the energy signals at five investigated positions were interpreted in terms of the relative proportion of three stress-dependent mechanisms for ...
T.W. Krause, N. Pulfer, P. Weyman, D.L. Atherton   +3 more
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Magnetic Barkhausen Noise and Acoustic Barkhausen Emission

Abstract This article describes Magnetic Barkhausen Noise (MBN) and Acoustic Barkhausen Emission (ABE), to characterize residual stresses. The article describes measurement depth and spatial resolution, frequency measurements, and calibrations.
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Evaluation of a Nitrided Case Depth by the Magnetic Barkhausen Noise

Journal of Nondestructive Evaluation, 2017
Applicability of magnetic methods for non-destructive evaluation of plasma nitrided cases was investigated comprehensively. Nitrided layers of 60–800 $$~\upmu \hbox {m}$$ thicknesses were produced on a ...
Alexandr Stupakov, Róbert Farda, Miroslav Neslušan, Alexej Perevertov, Tetsuya Uchimoto   +4 more
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Plastic deformation effects on magnetic Barkhausen noise

AIP Conference Proceedings, 2000
Plastically deformed steel specimens were analyzed using surface magnetic Barkhausen noise (MBN). Three types of samples were investigated: mild steel specimens uniaxially deformed up to 40% strain, mild steel specimens deformed in bending to 0.2% longitudinal strain, cold-rolled nuclear reactor pressure vessel steel specimens from 0% to 60% reduction ...
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Multiple magnetization paths in Barkhausen noise

Physical Review E, 1996
, Petta, , Weissman, , O'Brien
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Magnetic Barkhausen noise analysis of residual stress and carburization

AIP Conference Proceedings, 2001
Magnetic Barkhausen noise analysis is an effective non-destructive testing technique for determining both residual stress and carburization, with potential for improving the accuracy of remaining-life estimates of critical components in operational plant such as that used in thermal power stations and the petrochemical industry.
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A Magnetic Head for Detecting Barkhausen Noise

IEEJ Transactions on Fundamentals and Materials, 1995
Toru Inaguma, Hiroaki Sakamoto
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Stress Measurement Based on Magnetic Barkhausen Noise for Thin Films

Microelectronic Engineering, 2023
Kanna Omae, Takahiro Yamazaki, Chiemi Oka, Junpei Sakurai, Seiichi Hata   +4 more
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