Grain size measurement using magnetic and acoustic Barkhausen noise

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1987_Ranjan_GrainSizeMeasurement.pdf (574.59 KB)
Date
1987-04-15
Authors
Jiles, David
Thompson, R.
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Jiles, David
Distinguished Professor Emeritus
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Ames National Laboratory
Abstract

Results on annealed nickel show that the total number of counts of both magnetic and acoustic Barkhausen signals vary inversely with grain size. In decarburized steels the total number of counts and the amplitude of both Barkhausen signals increase in proportion to grain size. The paper addresses these results in context of grain size, grain‐boundary segregation, and precipitate effect.
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The following article appeared in Journal of Applied Physics 61, no. 8 (1987): 3199–3201 and may be found at http://dx.doi.org/10.1063/1.338900.
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http://doi.org/10.1063/1.338900
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https://dr.lib.iastate.edu/handle/20.500.12876/8031
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Engineering Mechanics
Engineering Science and Materials
Materials Science and Engineering
Structures and Materials
Keywords
nickel, magnetoacoustic effects, barkhausen effect, magnetic properties, magnetic testing, domain wall, wall pinning
Copyright
Thu Jan 01 00:00:00 UTC 1987
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