Fast detection of the magnetic easy axis on steel sheet using the continuous rotational Barkhausen method
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
24/10/2013
24/10/2013
2012
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| Resumo |
The magnetic behaviour of most commercial ferromagnetic steels is usually anisotropic presenting a magnetic easy axis. Changes in the direction of this axis can be related to mechanical changes and anomalies that occur in the fabrication process. The present work describes a method that uses a device with permanent magnets to create a precise rotational magnetic field. The device measures continuous Magnetic Barkhausen Noise signals related to the angle of magnetization, in order to determine the direction of the macroscopic magnetic easy axis. It also offers the possibility of obtaining real time parameters that quantify the magnetic anisotropy of the sample. (C) 2011 Elsevier Ltd. All rights reserved. CAPES CAPES |
| Identificador |
NDT & E INTERNATIONAL, OXFORD, v. 45, n. 1, supl. 4, Part 1-2, pp. 148-155, JAN, 2012 0963-8695 http://www.producao.usp.br/handle/BDPI/35783 10.1016/j.ndteint.2011.10.003 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCI LTD OXFORD |
| Relação |
NDT & E INTERNATIONAL |
| Direitos |
closedAccess Copyright ELSEVIER SCI LTD |
| Palavras-Chave | #BARKHAUSEN NOISE #ANISOTROPY #STAINLESS STEEL #MAGNETIC METHODS #MATERIAL CHARACTERIZATION #PIPELINE STEEL #MECHANICAL-STRESS #FIELD STRENGTH #MILD-STEEL #NOISE #FATIGUE #SIGNALS #FLUX #MATERIALS SCIENCE, CHARACTERIZATION & TESTING |
| Tipo |
article original article publishedVersion |
