Dual-Phase Steels Characterization Using Magnetic Barkhausen Noise Measurements
Magnetic Barkhausen noise measurements have been carried out to characterize ferritemartensite duplex microstructures and industrial Dual-Phase steels. We have first studied ferritemartensite duplex steels, for which the volume fraction and the carbon content of martensite were higher than for industrial Dual-Phase steels. We found linear evolutions between ferrite peak parameters and its proportion. We applied these results to industrial Dual-Phase steels and show that Barkhausen noise measurement can be successfully used for Dual-Phase steels characterization, and in particular for assessment of ferrite proportion.
J.M. Rodriguez-Ibabe, I. Gutiérrez, B. López and A. Iza-Mendia
A. Hug-Amalric et al., "Dual-Phase Steels Characterization Using Magnetic Barkhausen Noise Measurements", Materials Science Forum, Vols. 500-501, pp. 639-646, 2005