关键词: 高磁感, 无取向硅钢, 组织, 织构

Abstract: The microstructure, texture and magnetic properties of  1.1 %  Si non oriented silicon steel with normalizing and non normalizing were analyzed by the technology of XRD, EBSD and magnetic property measuring device. The results showed that normalizing treatment can increase the grain size of steel and make the microstructure more uniform, and optimize the magnetic properties. On the treatment of 980 ℃× 140 s normalizing, the average size of the microstructure of hot rolled product increases by about 23 μm, and the grain size of the final product increases by about 12 μm. And meanwhile, the {100} texture of the structure increases by about  3.0 % , the {111} texture decreases by about  2.6 % , the {100} texture of the finished product increases by about  0.43 % , the {111} texture decreases by about  6.5 % , and magnetic induction of  B50 increases by 0.021 T，iron loss of P1.5/50 decreases by 0.34 W/kg. 

Key words: high magnetic induction, non oriented silicon steel, microstructure, texture