无铝成分低牌号无取向硅钢析出物研究

采用配备了X射线能谱分析仪的Tecnai F20场发射透射电子显微镜对CSP流程生产的低牌号无Al成分体系硅钢析出物类型、形貌和尺寸进行了对比分析。结果表明：无铝成分（Al的质量分数小于0.01 %）体系的50W1300和50W800的析出物主要为CuXS/MnS，但有铝成分体系中，除含有CuXS/MnS外，还含有大量Ti(CN)、AlN析出物；且采用无铝成分体系的50W1300和50W800中析出物平均尺寸仅为51 nm和90 nm，比有铝成分体系的69 nm和182 nm明显细小。

Research on precipitation of low grade non-oriented silicon steel without aluminum#br#

The precipitations of non-oriented silicon steel produced by CSP were investigated by use of Tecnai F20 TEM with X-ray energy spectrum analyzer. The results showed that, the precipitates of aluminum free steel（the mass fraction of Al less than  0.01 %）50W1300 and 50W800 are mainly Cu_XS/MnS, while the precipitates of the silicon steel 50W1300 and 50W800 containing aluminum,are not only Cu_XS/MnS, but also much Ti (CN) and AlN precipitates. The average size of the precipitates in 50W1300 and 50W800 without aluminum is 51 nm and 90 nm respectively, which is obviously smaller than the average size of 50W1300 and 50W800 contained aluminum of  69 nm and 182 nm.