20mm薄板坯试制高牌号无取向硅钢的组织性能研究

Yanchun Xue,Liang Ma,Shengtao Qiu

Iron Steel Vanadium Titanium(2015)

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Abstract
采用薄板坯工艺制备了厚度为20mm的2.9% Si-0.77% Al无取向硅钢铸坯,经热轧、常化、冷轧、退火后,对其显微组织、析出物、磁性能进行了检测分析,结果表明:铸带为穿晶组织,热轧板表层为细小的再结晶晶粒,中心层为粗大的变形晶粒,热轧板常化后再结晶完全,成品板为等轴晶组织.成品析出物主要是AlN和(MnS+AlN)复合析出物,尺寸较粗大,为0.5~2.5 μm.成品磁性能为P15 =2.86 W/kg,B50=1.70 T.
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