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Micromagnetic Processes in Steels

  • A. D. Beale (a1), M. G. Hetherington (a2), J. P. Jakubovics (a1), B. A. Lewis (a1) and C. B. Scruby (a1)...

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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1. Buttle, D. J., Scruby, C. B., Briggs, G. A. D. and Jakubovics, J. P., Proc. Roy. Soc. London, A414, 469 (1987).
2. Kusanagi, H., Kimura, H. and Sasaki, H., J. Appl. Phys. 50, 2985 (1979).
3. Shibata, M. and Ono, K., NDT International, 14, 227 (1981).
4. Buttle, D. J., Briggs, G. A. D., Jakubovics, J. P., Little, E. A., and Scruby, C. B., Phil. Trans. Roy. Soc. London, A320, 363 (1986).
5. Lewis, B. A., unpublished work.
6. Taylor, R. A., Proc. Sixth Int. Conf. on High Voltage Electron Microscopy, Antwerp, Belgium, 1980, ed. Brederoo, P. and van Landuyt, J., p. 38.
7. Hetherington, M. G., Jakubovics, J. P., Szpunar, J. A. and Tanner, B. K., Phil. Mag. B56, 561 (1987).
8. Kusanagi, H., Kimura, H. and Sasaki, H., Proceedings of a Joint Meeting of the Acoustical Societies of America and Japan, Honolulu, Hawai, 1978, ed. Ono, K., p. 309.
9. Buttle, D. J., D. Phil. Thesis, University of Oxford, 1986.

Micromagnetic Processes in Steels

  • A. D. Beale (a1), M. G. Hetherington (a2), J. P. Jakubovics (a1), B. A. Lewis (a1) and C. B. Scruby (a1)...

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