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| Effects of Hot Rolling on Microstructures and Magnetic Properties in 3% Si Grain Oriented Electrical Steels |
| Journal of Magnetics, Volume 11, Number 3, 30 Sep 2006, Pages 111-114 |
Byung-Deug Hong*  (POSCO Research Laboratories), Jae-Kwan Kim(POSCO Research Laboratories), Kyung-Mox Cho(Dept. of Metall.Eng., Pusan National University) |
| Abstract |
| In grain oriented electrical steel process, hot band annealing has thought to be essential for obtaining good magnetic properties. New hot rolling method of heavy reduction in early hot rolling stage was applied to obtain good magnetic properties in GO process without hot band annealing. Hot rolling was carried out by varying hot rolling reduction distribution along hot rolling pass. The heavy hot rolling reduction in rear stand improves the magnetic flux density in the case of no hot band annealing. The hot band specimens of the heavy reduction in front stand shows the elongated hot deformed microstructures in the center layer and strong {001}<110> texture. On the contrary, the heavily reduced specimens in rear stand shows the recrystallization in the center layer of hot band and strong {111}<112> and {110}<001> textures. |
| Keywords: grain oriented electrical steels; hot band annealing; hot rolling reduction; hot rolling texture |
| DOI: |
| Full Text: PDF |
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