Abstract
Magnetic Barkhausen Noise (MBN) was used to evaluate the magnetic behaviour of nuclear reactor pressure vessel steel specimens cold rolled to reduction ratios between 0% and 60%. Measurements performed at increasing reduction ratios revealed variations in the angular dependence of a parameter termed ‘MBNenergy’, concurrent with modifications in the shape of the pulse height distribution curves. The angular preference of MBNenergy present prior to cold rolling was destroyed at intermediate reduction ratios (≈25%), and restored with further reduction (≈40%). Along the rolling direction, the number of large voltage pulses was reduced at reduction ratios of ≈25%, increasing again at ≈60% reduction ratio. Results were attributed to competing effects between crystallographic texture, microscopic and macroscopic residual stresses.
Similar content being viewed by others
References
R. M. Bozorth, “Ferromagnetism” (IEEE Press, NY 1951).
W. Six, J. I. Snoek and W. G. Burgers, De Ingenier 49 E (1934) 195.
S. Chikazumi, K. Suzuki and H. Iwata, J. Phys. Soc. Japan 15(2) (1960) 250.
N. Tamagawa, Y. Nakagawa and S. Chikazumi, ibid. 17(8) (1962) 1256.
C.-G. Stefanita, L. Clapham and D. L. Atherton, submitted for publication.
Idem., submitted for J. Mater. Sci., Submitted.
T. W. Krause, L. Clapham and D. L. Atherton, J. Appl. Phys. 75(12) (1994) 7983.
G. E. Dieter, “Mechanical Metallurgy” (McGraw-Hill, Inc., NY, 1961).
J. Gauthier, T. W. Krause and D. L. Atherton, NDT & E Int. 31(1) (1998) 23.
J. W. L. Pang, T. M. Holden and T. E. Mason, J. Strain An. 33 (1998) 373.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stefanita, CG., Clapham, L., Yi, JK. et al. Analysis of cold rolled steels of different reduction ratio using the magnetic Barkhausen noise technique. Journal of Materials Science 36, 2795–2799 (2001). https://doi.org/10.1023/A:1017981317255
Issue Date:
DOI: https://doi.org/10.1023/A:1017981317255