Surface magnetic domains dynamic in machined steel
1 Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. listopadu 15, 70833 Ostrava-Poruba, Czech Republic
2 Faculty of Mechanical Engineering , University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia
3 RMTVC, VŠB-Technical University of Ostrava, 17. listopadu 15, 70833 Ostrava-Poruba, Czech Republic
a Corresponding author: email@example.com
Published online: 3 July 2014
This contribution deals with an observation of the magnetic dynamic of different types of the machined surface of bearing steel. The Bakhausen noise (BN) measurements are presented here as commonly introduced in industry for quality control due to the extremely sensitivity of the magnetic domains wall dynamics to the microstructure of material. The results of magneto-optical measurements are presented with the goal to explain the observed BN anisotropy. It is shown that BN anisotropy is associated with uniaxal magnetic anisotropy introduced by hard milling which causes the principally different magnetic reversals processes in orthogonal directions.
© Owned by the authors, published by EDP Sciences, 2014
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