Barkhausen effect in steels and its dependence on surface condition Parakka, Anthony Jiles, David Gupta, H. Zang, M.
dc.contributor.department Center for Nondestructive Evaluation 2018-02-14T11:02:35.000 2020-06-30T01:26:12Z 2020-06-30T01:26:12Z Wed Jan 01 00:00:00 UTC 1997 2014-08-22 1997-04-15
dc.description.abstract <p>Micromagnetic Barkhausen signals from magnetic materials originate from the discontinuous changes in magnetization under the action of a changing applied magnetic field.Barkhausen emissions that are detected by a sense coil come predominantly from a surface layer. In iron based materials this layer is about 500 μm thick. The Barkhausen signal is affected by changes in material microstructure and the presence of residual stress, since these affect the dynamics of domain wall motion. The selective attenuation of high frequency components of the Barkhausen signal due to eddy currents in electrically conducting materials is used to evaluate changes in material condition at different depths inside the material.Barkhausen measurements on specimens subjected to different thermal treatment during surface conditioning procedures are presented. Also presented for comparison are analysis of the material condition using x-ray diffraction for assessment of residual stress, and microhardness measurements which evaluate the surface microstructure condition. The results show that Barkhausen emissions can be utilized to evaluate changes in the surface condition of materials.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 81 (1997): 5085 and may be found at <a href="" target="_blank"></a>.</p>
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dc.identifier archive/
dc.identifier.articleid 1027
dc.identifier.contextkey 6023543
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cnde_pubs/27
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 23:04:56 UTC 2022
dc.source.uri 10.1063/1.364516
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.disciplines Engineering Physics
dc.subject.keywords Barkhausen effects
dc.subject.keywords Materials modification
dc.subject.keywords Materials analysis
dc.subject.keywords Surface dynamics
dc.subject.keywords Surface treatments
dc.title Barkhausen effect in steels and its dependence on surface condition
dc.type article
dc.type.genre article
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