Effect of magnetic field pre-annealing on microstructure and texture of CGO steel

doi:10.13251/j.issn.0254-6051.2022.04.020

Abstract

Abstract: CGO oriented silicon steel with 3.12%Si was pre-annealed in the different pulsed magnetic fields, and the microstructure and texture of the steel were analyzed by means of metalloscope and XRD. The results show that the average grain size of the oriented silicon steel is refined and the microstructure distribution is uniform after the pre-annealing treatment with pulse magnetic field. Based on the analysis of the ODF map and orientation line, it can be seen that the pulse magnetic field pre-annealing has a significant promoting effect on the favorable texture of {111}<112>, especially when the annealing temperature is 760-800 ℃ and the pulsed magnetic fieldintensity is 20 mT and the magnetic time is 1 min, the best effect can be obtained.

Key words: oriented silicon steel, magnetic field annealing, texture, microstructure, average grain size

CLC Number:

TG142

Su Pengji, Ma Yonglin, Dong Lili, Yang Xuefeng. Effect of magnetic field pre-annealing on microstructure and texture of CGO steel[J]. Heat Treatment of Metals, 2022, 47(4): 128-132.

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