常化处理对1.1 %Si无取向硅钢组织和性能的影响

针对Si的质量分数为 1.1 % 无取向硅钢试验材料，通过980 ℃×140 s常化和未常化处理，采用XRD、EBSD和磁性能测量技术对比分析了常化和未常化对 1.1 %Si 无取向硅钢常化、退火态组织、织构与成品磁性能的影响。结果表明：980 ℃×140 s常化处理使热轧组织增大约23 μm，最终成品晶粒尺寸增大约12 μm，均匀性提高；常化后的组织的{100}织构增强约 3.0 % ，{111}取向织构减弱约 2.6 % ，成品{100}织构增强约 0.43 % ，{111}取向织构减弱约 6.5 % ；硅钢磁感 B50 值提高 0.021 T ，铁损 P1.5/50 值降低 0.34  W/kg。

Influence of normalizing treatment on the microstructure and propertiesof 1.1 % Si non oriented electrical steel

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.