Modeling of the Barkhausen jump in low carbon steel


Autoria(s): Benitez, Jose Alberto Pérez; Sanchez, Julio Antonio Capó; Padovese, Linilson Rodrigues
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

17/04/2012

17/04/2012

2008

Resumo

This work presents a model for the magnetic Barkhausen jump in low carbon content steels. The outcomes of the model evidence that the Barkhausen jump height depends on the coercive field of the pinning site and on the mean free path of the domain wall between pinning sites. These results are used to deduce the influence of the microstructural features and of the magnetizing parameters on the amplitude and duration of the Barkhausen jumps. In particular, a theoretical expression, establishing the dependence of the Barkbausen jump height on the carbon content and grain size, is obtained. The model also reveals the dependence of the Barkhausen jump on the applied frequency and amplitude. Theoretical and experimental results are presented and compared, being in good agreement. (C) 2008 American Institute of Physics.

Identificador

JOURNAL OF APPLIED PHYSICS, v.103, n.4, 2008

0021-8979

http://producao.usp.br/handle/BDPI/14685

10.1063/1.2840058

http://dx.doi.org/10.1063/1.2840058

Idioma(s)

eng

Publicador

AMER INST PHYSICS

Relação

Journal of Applied Physics

Direitos

openAccess

Copyright AMER INST PHYSICS

Palavras-Chave #DOMAIN-WALL #DYNAMICS #NOISE #HYSTERESIS #Physics, Applied
Tipo

article

original article

publishedVersion