Liu Xuming,Geng Zhiyu,Li Fuqiang,et al.Impact of the Annealing Temperature on the Magnetic and Mechanical Characteristics of Thin-gauge Non-oriented Electrical Steel[J].Special Steel,2026,47(01):99-105.
Liu Xuming,Geng Zhiyu,Li Fuqiang,et al.Impact of the Annealing Temperature on the Magnetic and Mechanical Characteristics of Thin-gauge Non-oriented Electrical Steel[J].Special Steel,2026,47(01):99-105. DOI: 10.20057/j.1003-8620.2025-00033.
Impact of the Annealing Temperature on the Magnetic and Mechanical Characteristics of Thin-gauge Non-oriented Electrical Steel
This study systematically investigates the microstructure, texture, mechanical properties, and magnetic properties of 0.20 mm thick non-oriented silicon steel for new energy vehicles under different annealing temperatures. It is observed that recrystallization had finished at 780 ℃. In the initial stage of recrystallization,λ fiber texture mainly formed in the cold-rolled shear bands, and some {114}<841> and {112}<110>, and {111}<112> oriented grains are also formed there.The α* fiber texture of grains with orientation of {114}<841>,{112}<241> and {100}<120> is mainly formed in the other zones.When annealing at 900 ℃ and above,As the annealing temperature rises, the proportion of {111}<112> components diminishes gradually, while the proportion of {100}<001> components grows slowly. This augmentation in annealing temperature will foster the formation of λ fiber texture and impede the growth of γ fiber texture. Grain size increases with the rise in annealing temperature, yet the high frequency iron loss P1.0/400 initially declines before eventually rising to its lowest value.in the range of 920 ℃-960 ℃, and the grain size range is 108 μm-138 μm, which is also the best grain size range.As the annealing temperature rises, the strength diminishes gradually and remains nearly invariable in the 920 ℃-960 ℃ range.
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