Effect of 30 Tesla Magnetic Field on Transformations in a Novel Bainitic Steel

R. A. Jaramillo, S. S. Babu, G. M. Ludtka, R. A. Kisner, J. B. Wilgen, G. Mackiewicz-Ludtka, D. M. Nicholson, S. M. Kelly, M. Murugananth and H. K. D. H. Bhadeshia

Abstract

The continuous cooling transformation characteristics of novel bainitic steels have been studied, both under ordinary conditions and whilst subjected to a 30 T magnetic field. The magnetic field has been found to completely change the microstructure obtained, from a mixture of bainite and martensite to one containing an incredibly fine pearlite with an interlamellar spacing of about 50 nm. As a consequence, the pearlite is found to be much harder than any data found in the published literature.

Scripta Materialia Vol. 52, 2004, pp. 461-466.

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