退火温度对超薄取向硅钢织构及磁性能的影响

doi:10.13228/j.boyuan.issn0449-749x.20200408

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Abstract In order to study the effect of annealing temperature on microstructure,texture and magnetic properties of ultra-thin grain-oriented silicon steel for medium/high frequency application,an ultra-thin grain-oriented silicon steel with a thickness of 0.08 mm was prepared by the primary recrystallization method using the commercial 0.27 mm glassless grain-oriented silicon steel plate as raw materials. Effects of annealing in the range of 800 ℃ to 1 000 ℃ on annealed structure,texture and magnetic properties of ultra-thin oriented silicon steel were systematically investigated. It was found that,due to forming high-angle misorientation grain boundary with surrounding deformation matrix,the η oriented ({0kl}<100>) grains in transition bands preferentially nucleated by bulging of initial grain boundaries. With the increase of annealing temperature,average recrystallized grain size increased,the size advantage of non-η oriented grains such as {114}<481> grains became more obvious,the volume ratio of η oriented grains decreased and grain uniformity turned worse. Ultra-thin oriented silicon steel had better comprehensive magnetic properties when annealing temperature was slightly lower and the magnetic induction intensity and the core loss was 1.82 T and 11.66 W/kg respectively,best comprehensive medium frequency magnetic properties in the present experiment condition when annealing temperature was 800 ℃.

Key words： ultra-thin grain-oriented silicon steel glassless grain-oriented-silicon steel annealing grain orientation texture magnetic induction intensity core loss

Received: 07 August 2020

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	ZHANG Bo
	MENG Li
	ZHANG Ning
	HE Cheng-xu
	MA Guang
	HU Zhuo-chao

Cite this article:

ZHANG Bo,MENG Li,ZHANG Ning等. Effect of recrystallization annealing temperature on texture and magnetic properties of ultra-thin oriented-silicon steel[J]. Iron and Steel, 2021, 56(3): 29-33.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20200408 OR http://www.chinamet.cn/Jweb_gt/EN/Y2021/V56/I3/29

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