VODÁREK Vlastimil VSB-Technical University of Ostrava

Spoluautoři Jan HOLEŠINSKÝ, Anastasia MASLOVA, František FILUŠ, Šárka MIKLUŠOVÁ, Ondřej ŽÁČEK

Magnetic properties of grain oriented electrical steel (GOES) depend strongly on the sharpness of the Goss texture. It is believed that the perfection of the final texture is significantly affected by structural inheritance during a complex processing procedure of GOES. The production chain starts with cold rolling of hot rolled coils and is followed by decarburization annealing. This paper deals with results of detailed microstructural investigations on GOES after these two steps of the production process. Microstructure characterization of specimens was carried out using optical metallography, scanning electron microscopy combined with electron backscattered diffraction (EBSD) and transmission electron microscopy. The attention has been paid to texture evaluation and minor phase evolution across the thickness of strips. The software OIM (EDAX/TSL) was used for indexing of Kikuchi diffraction patterns and for the evaluation of the orientation data. Precipitation processes were studied using carbon extraction replicas.