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Secondary recrystallization behavior and magnetic properties of grain oriented 2.2% Si‐1.5% Mn steel

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2 Author(s)
Yashiki, H. ; Iron & Steel Research Laboratories, Sumitomo Metal Industries, Ltd., Amagasaki 660, Japan ; Kaneko, T.

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The secondary recrystallization behavior and magnetic properties in ultralow carbon 2.2% Si‐1.5% Mn steel containing 0.008% sol.Al was investigated. It was found that the atmosphere of final annealing plays an important role on the secondary recrystallization in this steel. In the case of annealing in N2 containing gas, good magnetic properties equivalent to those of conventional grain‐oriented electrical steel were obtained. However, annealing in 100% H2 gas resulted in poor magnetic properties. Annealing in N2 containing gas can be considered as causing a sharp {110}≪001≳ texture due to the strengthened inhibition resulting from an increase in fine nitrides. These results suggest the possibility of a new simple processing of grain‐oriented electrical steel.

Published in:

Journal of Applied Physics  (Volume:73 ,  Issue: 10 )