{411}〈148〉 Texture in Thin-Gauge Grain-Oriented Silicon Steel

The significant occupancy of {411}〈148〉texture exists in the thin-gauge grain-oriented silicon steel（TGCRGO is defined that thickness of the sheet is〈0.25 mm and the reduction in cold rolling is more than 90%） which has been considered to have obviously effects on the abnormal growth of Goss-oriente...

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Published in:金属学报：英文版 2016-06 (6), p.554-560
Main Author: Cheng-Xu He Fu-Yao Yang Guang Ma Xin Chen Li Meng
Format: Article
Language:English
Online Access:Get full text
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Summary:The significant occupancy of {411}〈148〉texture exists in the thin-gauge grain-oriented silicon steel（TGCRGO is defined that thickness of the sheet is〈0.25 mm and the reduction in cold rolling is more than 90%） which has been considered to have obviously effects on the abnormal growth of Goss-oriented grains during the secondary recrystallization process. The microstructures of the TG-CRGO were investigated by X-ray diffraction and electron back-scattered diffraction in this study. It was found that {411}〈148〉〉texture mainly exists in the center layer of hot-rolled as well as normalized plates.With the increase in cold rolling reduction, {411}〈148〉 orientation gradually rotates to a-fiber texture（〈110〉//RD）.Finally, few {411}〈148〉would retain at the boundaries of deformed a-fiber grains（〈110〉//RD） as the reduction in cold rolling reaches 90%. After annealing treatment, a small amount of c-fiber textures（〈111〉//ND） preferably nucleates and recrystallizes between the DBs（deformation bands） at first; then, the {411}〈148〉 recrystallization texture occurs and mainly nucleates at the grains boundaries of the deformed a-fiber grains, and also quite a few {411}〈148〉orientation grains nucleate in the inner of {112}〈110〉grains. But this phenomenon was not observed in the {100}〈011〉deformation grains.With respect to the occurrence of {411}〈148〉recrystallization texture, it is mainly induced by strong a-fiber as well as weak c-fiber textures formed during cold rolling other than originating from {411}〈148〉 regions in hot bands.
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-016-0419-9