常化温度对无取向电工钢组织和性能的影响

研究了常化温度对无取向电工钢组织及性能的影响。结果表明：常化板织构特征呈现织构梯度分布，中心层分布的主要是{100}〈021〉、{114}〈481〉、{112}〈421〉等α*取向晶粒，Goss和黄铜等取向晶粒则主要分布于表层及次表层区域。经5 min常化处理，常化温度由840 ℃提升到920 ℃，常化板晶粒尺寸增加，成品板晶粒尺寸增加，铁损值P1.5/50降低约0.106 W/kg，成品板中心层{100}取向晶粒体积分数增加，{111}和{112}取向晶粒体积分数降低，织构得以改善，磁感B5000升高约0.016 7 T。

Influence of normalizing temperature on microstructure andproperties of non-oriented electrical steel sheets#br#

The effects of normalizing temperature on the microstructure and properties of non oriented electrical steel were studied in this paper. The results showed that the texture characteristics of the normalized plate showed gradient distribution. The center layer textures were mainly α* oriented grain of {100}〈021〉,{114}〈481〉,{112}〈421〉 , and the surface and subsurface textures were mainly Goss and brass oriented grain. When the normalization temperature raised from 840 ℃ to  920 ℃ after 5min normalization treatment, the grain sizes of normalized plate and finished plate were increased and the texture were improved, the volume fraction of {100} oriented grains increased and the {111} and {112} oriented grains decreased in the center layer of finished plate, the iron loss P1.5/50 decreased by about 0.106 W/kg, the magnetic induction B5000 increased by about 0.016 7 T.