Effect of Cold-rolling Mode on Microstructure,Texture and Magnetic Properties of 50W470 Steel
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摘要: 利用金相显微镜和XRD衍射仪等设备研究了连续冷轧和可逆冷轧钢带对常化50W470组织织构及磁性能的影响。研究结果表明:连续冷轧钢带退火后的平均晶粒尺寸约为88μm,可逆冷轧钢带退火后的平均晶粒约为69μm;连续冷轧和可逆冷轧后织构都汇集在α和γ取向线上;连续冷轧和可逆冷轧的冷轧和退火织构都是在α取向线上。Ø=15°偏向{001}<110>和Ø=30°偏向{112}<110>织构处的取向密度相差比较明显,而γ取向线上的取向密度相差不大;连续冷轧成品铁损为:P1.5/50=2.94 W/kg,磁感为:B5000=1.729 T;可逆冷轧成品铁损为:P1.5/50=3.04 W/kg,磁感为:B5000=1.729 T。Abstract: The influence of continuous cold rolling and reversible cold rolling processes on the microstructure,texture and magnetic properties of 50W470 steel had been investigated by metallographic microscope and XRD ray diffraction instrument.Optical observation showed that the average grain size of steel strip after annealing through continuous cold rolling was about 88 μm,while the value for reversible cold rolling was about 69 μm.The texture for bothcontinuous cold rolling and reversible cold rolling texture concentrated into α-fibre and γ-fible,the orientational density of the texture of continuous cold rolling and reversible cold rolling were obvious difference on α-fibre,Ø=15°bias {001} <110> and Ø=30°bias {112} <110>,while the orientational density of the γ-fible were small.The iron losses of steel sheet through continuous cold rolling was:P1.5/50=2.94 W/kg,the magnetic induction was:B5000=1.729 T,while the iron losses for the reversible cold rolling was:P1.5/50=3.04 W/kg,the magnetic induction was:B5000=1.729 T.
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