Artículos de revistas
Magnetic Barkhausen Noise in Quenched Carburized Nickel-Steels
Fecha
2012Registro en:
IEEE Transactions on Magnetics, Piscataway, v. 48, n. 4, supl. 4, part 1, p. 1465-1468, Apr., 2012
0018-9464
10.1109/TMAG.2011.2173666
Autor
Monlevade, Eduardo Franco de
Campos, Mariana Frias de
Franco, F. A.
Sanchez, Julio Antonio Capó
Goldenstein, Helio
Padovese, Linilson Rodrigues
Institución
Resumen
Two steel sheets, one with 5% Ni and another with 10% Ni, were submitted to carburization and quenching, obtaining a microstructure with martensite and retained austenite. These steels were characterized with magnetic Barkhausen noise (MBN). The Barkhausen signal is distinctively different for the carburized and quenched samples. The carburized and quenched samples present higher coercive field than the annealed samples. X-ray diffraction data indicated that the carburized and quenched samples have high density of dislocations, a consequence of the martensitic transformation.