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Lookup NU author(s): Mohamed Blaow,
Emeritus Professor Terry Evans,
Professor Brian Shaw
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The effect of decarburisation of the surface layer on magnetic Barkhausen noise (MBN) emission was investigated in quenched and tempered steel containing 0.67% carbon. The MBN profile of intensity versus energising current from the un-decarburised material showed a single peak typifying the martensite structure. After decarburisation, a profile with a double peak was obtained. The presence of the decarburised layer produced a second, overlapping peak at a lower field value. The height of the second peak increased with increasing depth of decarburisation and its position moved to increasingly lower field values. © 2005 Springer Science + Business Media, Inc.
Author(s): Blaow M, Evans JT, Shaw BA
Publication type: Article
Publication status: Published
Journal: Journal of Materials Science
Print publication date: 01/10/2005
ISSN (print): 0022-2461
ISSN (electronic): 1573-4803
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