Journal ArticleDOI
On the role of residual internal stresses and dislocations on Barkhausen noise in plastically deformed steel
Xavier Kleber,A. Vincent +1 more
TLDR
In this article, the dependence of Barkhausen noise on elastic and plastic deformations, achieved in tension and in compression, has been investigated both in Armco iron and a low carbon steel.Abstract:
The dependence of Barkhausen noise on elastic and plastic deformations, achieved in tension and in compression, has been investigated both in Armco iron and a low carbon steel These materials exhibit quite different behaviours, especially with regard to the effect of plastic deformation: a tensile plastic deformation (>1%) induces a marked increase in Barkhausen noise for Armco iron while it induces a steep decrease in the low carbon steel The comparison between the tensile and compressive behaviours, as well as between the elastic and plastic regimes of deformation enables us to attribute these effects to two underlying mechanisms, ie effect of residual internal stresses through magneto-elastic coupling and dislocation–domain wall interaction In Armco iron, the latter mechanism seems to have the strongest influence on the Barkhausen noise, while in the low carbon steel the influence of residual internal stresses prevailsread more
Citations
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A review of three magnetic NDT technologies
Z.D. Wang,Y. Gu,Yue-Sheng Wang +2 more
TL;DR: In this article, a review of magnetic NDT technologies is presented, which includes magnetic flux leakage (MFL), magnetic Barkhausen noise (MBN), and recently developed metal magnetic memory (MMM).
Journal ArticleDOI
Magnetic barkhausen noise: The influence of microstructure and deformation in bending
TL;DR: In this paper, the effect of microstructure and bending deformation on the characteristics of magnetic Barkhausen noise profiles were examined in carbon steel of the type used for wear-resistant engineering components.
Journal ArticleDOI
Evaluation of Barkhausen Noise and Magnetoacoustic Emission Signals Properties for Plastically Deformed Armco Iron
TL;DR: In this article, the influence of different modes of plastic deformation on the magnetoacoustic properties of Armco iron was investigated and two sets of samples have been investigated-the first consisted of preannealed samples that had been subsequently cold rolled, and the second one consisted of samples cut out from commercially available Armco plates, subjected to tensile loading.
Journal ArticleDOI
Magnetic Barkhausen noise from strain-induced martensite during low cycle fatigue of 304L austenitic stainless steel
TL;DR: In this paper, the magnetic Barkhausen noise from strain induced α ′-martensite was investigated during low cycle fatigue (LCF) of 304L steel and the influence of cold-rolling prior to fatigue was also examined.
Journal ArticleDOI
Effect of tensile stress on the variation of magnetic field of low-alloy steel
TL;DR: In this paper, the surface magnetic field intensity H p ( y ) of low carbon steel plate specimen was measured after tensile test and unloading; variation of H p( y ) was studied.
References
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Book
Introduction to Magnetic Materials
B. D. Cullity,C. D. Graham +1 more
TL;DR: In this paper, the authors present materials at the practical rather than theoretical level, allowing for a physical, quantitative, measurement-based understanding of magnetism among readers, be they professional engineers or graduate-level students.
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Physics of magnetism
TL;DR: Paleomagnetism is the study of the magnetic properties of rocks as discussed by the authors, and it is one of the most broadly applicable disciplines in geophysics, having uses in diverse fields such as geomagnetic, tectonics, paleoceanography, volcanology, paleontology, and sedimentology.
Journal ArticleDOI
Dislocation wall and cell structures and long-range internal stresses in deformed metal crystals
TL;DR: In this article, a simple model for single-slip and multiple-slink deformation is proposed, in which the crystal is considered as a composite consisting of hard dislocation walls of high local dislocation density which are separated by soft regions of low local dislocations density.
Journal ArticleDOI
On the origin of the tensile flow stress in the stainless steel AISI 316L at 300 K: Back stress and effective stress
TL;DR: In this paper, the tensile behavior of a polycrystal austenitic stainless steel at 0.2Tm is discussed in terms of back and effective stresses with the help of qualitative and quantitative TEM observations.
Journal ArticleDOI
Plastic versus elastic deformation effects on magnetic Barkhausen noise in steel
TL;DR: In this paper, the effects of elastic and plastic deformation on magnetic Barkhausen noise (MBN) signals were investigated on a number of mild steel plate samples subjected to varying degrees of uniaxial elastic deformation up to ∼40% strain.