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The effect of thermomechanical history upon the microstructure and magnetic properties of nonoriented silicon steels

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Abstract

A study has been conducted to evaluate the effect of hot rolling conditions on precipitation behavior of MnS and AIN, microstructure, texture, and subsequent magnetic properties of nonoriented silicon steels. TEM work showed that MnS particles act as nucleating sites for dissolved A1N by providing an interface on which to precipitate. It was established that for the steels studied, a decrease in reheat temperature and a corresponding increase in coiling temperature resulted in an improved texture and, subsequently, better final magnetic properties. These results were explained based upon the effect of steel composition and hot rolling history on recrystallization behavior in the hot band and continuously annealed strip.

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Authors and Affiliations

  1. Inland Steel Research, 46312, East Chicago, IN

    G. Lyudkovsky (Section Manager) & P. D. Southwick (Manager)

Authors
  1. G. Lyudkovsky
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  2. P. D. Southwick
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Additional information

This paper is based on a presentation made at the symposium “Physical Metallurgy of Electrical Steels” held at the {dy1985} annual AIME meeting in New York on February 24–28, {dy1985}, under the auspices of the TMS Ferrous Metallurgy Committee.

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Lyudkovsky, G., Southwick, P.D. The effect of thermomechanical history upon the microstructure and magnetic properties of nonoriented silicon steels. Metall Trans A 17, 1267–1275 (1986). https://doi.org/10.1007/BF02650107

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