2003 Volume 89 Issue 6 Pages 686-690
The twin morphology of Goss single crystal of silicon steel was investigated using electron back scattering diffraction (EBSD) method of FESEM, and was compared with that of W-SEM.
The orientation analysis parallel to ND, RD and TD showed a very narrow band of about 3 μm width perpendicular to the rolling direction. The twin formed between the boundary of the Goss single crystal matrix and the very narrow band. This boundary showed step-like morphologies of about 70-200 nm. The angle between the two <110> orientations of the (211) twin was 70.5 deg.
The origin of twin due to the alternate formation of twin boundary was also observed. It is suspected that this permitted to do the formation energy of twin as low as possible
