Paper Title:
Influence of Phosphorous and Boron on the Recrystallization, Grain Growth and Mechanical Properties of 3% Si Steel
  Abstract

A new approach to obtain high strength of non-oriented electrical steel by addition of phosphorus is proposed. The method includes B-additions which suppress grain boundary P segregation, strengthen the grain boundary cohesion and enhance the P solid solution hardening. Two 3% Si steels, a B-free 0.1%P steel and a 20 ppm B-added 0.1%P steel were analyzed. The microstructures were studied by EBSD. The B-addition resulted in a pronounced rotated cube component, {100}<011>, after a hot-band annealing treatment. A -fiber texture was developed in the B-free steel. The B-addition caused a retardation of the recrystallization, allowing for the growth of grains with a lower stored energy, such as rotated cube oriented grains. The steels were further cold rolled and recrystallization annealed to observe a similar effect after large cold reductions. The present contribution focuses on the potential of this concept to obtain high strength 3% Si steels with low core losses.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
302-305
DOI
10.4028/www.scientific.net/MSF.654-656.302
Citation
S. I. Lee, B. C. De Cooman, "Influence of Phosphorous and Boron on the Recrystallization, Grain Growth and Mechanical Properties of 3% Si Steel", Materials Science Forum, Vols. 654-656, pp. 302-305, 2010
Online since
June 2010
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Price
$32.00
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