研究了铈对1.2Si％-0.4％ Al无取向电工钢成品板织构和磁性能的影响.结果表明:随铈含量增加,钢中有利织构组分强度和所占比例均先增加后减少,铈含量为0.0051％时磁性能达到最佳.但当铈添加过量时(质量分数0.018％),磁性能反而降低.这归因于适量铈加入净化了钢液、改变了夹杂物性质,影响到再结晶过程中织构的演变.过量铈的加入生成过多的铈氧硫化物夹杂,阻碍退火时晶粒长大,恶化磁性能.
The effect of Ce element on magnetic properties and annealed texture of a 1.2％ Si-0.4％ Al non-oriented electrical steel was investigated.The results show that the intensity and ratio of favorable texture increase first and then decreases with the increasing of the Ce content.Magnetic properties of the specimens with 0.0051％ Ce content are the most optimal.However,when Ce content is excessive,for example 0.018％,the magnetic properties of the specimens degrade.It is attributed to the effect of moderate Ce on the purifying molten steel,modifying inclusions and evolution of texture during recrystallization.Whereas,excessive Ce in specimen leads to the formation of more Ce oxides and sulphides,which inhibit grains growth during annealing and as a result,the magnetic properties are deteriorated.
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