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Micromagnetic Processes in Steels

Published online by Cambridge University Press:  15 February 2011

A. D. Beale,
M. G. Hetherington,
J. P. Jakubovics,
B. A. Lewis and
C. B. Scruby
A. D. Beale
Affiliation:
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.
M. G. Hetherington
Affiliation:
Mark Hetherington died tragically during the course of this work.
J. P. Jakubovics
Affiliation:
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.
B. A. Lewis
Affiliation:
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.
C. B. Scruby
Affiliation:
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.
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Abstract

Magnetoacoustic emission (MAE) and Barkhausen emission (BE) measurements have been carried out on steel specimens heat treated to produce various microstructures ranging from martensitic/bainitic to ferritic/pearlitic. The magnetic domain structure of the specimens has been studied using transmission electron microscopy, and micromagnetic processes have been observed using an in-situ magnetizing device. The results are used in the interpretation of the MAE and BE measurements.

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References

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