Effect of decarburizing annealing process on texture and magnetic properties of thin-gauge oriented silicon steel

doi:10.13251/j.issn.0254-6051.2024.06.003

Abstract

Abstract: Microstructure,texture and magnetic properties of thin-gauge oriented silicon steel after annealing at different temperatures (820, 840, 860 ℃) and time (120, 150 s) were compared by means of EBSD and XRD. The results show that increasing the decarburization annealing temperature and decreasing the decarburization annealing time can reduce the grain size, increase the proportion of favorable texture and recrystallization ratio of the oriented steel, which provide the basis for the abnormal growth of Goss grains in the process of secondary recrystallization, so as to improve the magnetic properties of the oriented silicon steel. When the decarburization annealing temperature is 860 ℃ and the annealing time is 120 s, the oriented silicon steel specimen obtains the best magnetic properties, with the magnetic induction intensity J₈₀₀ of 1.807 T and the core loss P_1.7 of 1.07 W·kg^-1.

Key words: oriented silicon steel, decarburizing annealing, texture, magnetic properties

CLC Number:

TM275

Wang Yitong, Liu Xuming, Guo Han, Geng Zhiyu, Xue Feng. Effect of decarburizing annealing process on texture and magnetic properties of thin-gauge oriented silicon steel[J]. Heat Treatment of Metals, 2024, 49(6): 17-22.

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