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Carbide Precipitation in Electrical Steels

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Abstract

This study determined the changes in core loss of a typical nonoriented silicon steel as a function of carbon saturation and aging temperature and time. The kinetics of carbide precipitation were investigated over the temperature range from 150 to 760°C and times from 30 sec. to 240 hrs. The changes in core loss were evaluated and correlated with morphology and distribution of carbide precipitates, using optical and electron microscopy. Once a transition carbide dispersion was initially established at a given aging temperature, particle coarsening and core loss changes were generally insensitive to aging time.

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Authors
  1. G. M. Michal
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  2. J. A. Slane
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Additional information

Gary M. Michal received his Ph.D. in materials science and engineering from Stanford. He is currently Assistant Professor in the Department of Metallurgy and Materials Science at Case Western Reserve University. He is also a member of TMS.

John A. Slane received his M.S. in metallurgy and materials science from Case Western Reserve University. He is currently Supervisor of Advanced Microstructural Analysis at LTV Steel Research Center.

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Michal, G.M., Slane, J.A. Carbide Precipitation in Electrical Steels. JOM 38, 32–36 (1986). https://doi.org/10.1007/BF03257952

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