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BIBTEX RIS

Magnetic Barkhausen emission in lightly deformed AISI 1070 steel

2011; Elsevier BV; Volume: 324; Issue: 1 Linguagem: Inglês

10.1016/j.jmmm.2011.07.014

ISSN

1873-4766

Autores

J. Capó-Sánchez, Marcos Flávio de Campos, Linilson Rodrigues Padovese,

Tópico(s)

Force Microscopy Techniques and Applications

Resumo

The Magnetic Barkhausen Noise (MBN) technique can evaluate both micro- and macro-residual stresses, and provides indication about the relevance of contribution of these different stress components. MBN measurements were performed in AISI 1070 steel sheet samples, where different strains were applied. The Barkhausen emission is also analyzed when two different sheets, deformed and non-deformed, are evaluated together. This study is useful to understand the effect of a deformed region near the surface on MBN. The low permeability of the deformed region affects MBN, and if the deformed region is below the surface the magnetic Barkhausen signal increases.

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