CSP流程和传统流程生产无取向硅钢50 W1300析出物分析

Analysis of Precipitation in 50W1300 Non-oriented Silicon Steel Produced by CSP Process and Traditional Process

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流程和传统流程生产的50W1300无取向硅钢析出物类型、形貌和尺寸进行了对比分析。结果表明:不同流程生产的50W1300无取向硅钢的析出物主要为AlN、Cu_XS/MnS以及Ti(CN)的单相或复合析出物,但CSP流程中Ti(CN)的含量明显高于传统流程;采用CSP流程生产的50W1300无取向硅钢中析出物平均尺寸仅69 nm,比传统流程生产的208 nm明显细小,对最终产品晶粒长大具有更强的抑制效应。

The precipitations of 50W1300 non-oriented silicon steel produced by CSP and traditional proless were investigated by use of Tecnai F20 TEM with X-ray energy spectrum analyzer.The results show that the precipitates of 50W1300 produced by different processes are mainly AlN,Cu_XS/MnS and Ti(CN)single phase or complex precipitates,but the content of Ti(CN)in CSP process is obviously higher compared with traditional process,and the average size of the precipitates in 50W1300 produced by CSP process is only 69 nm,which is obviously smaller than traditional process which is 208 nm.So the inhibitory effect on grain growth in final annealing treatment is stronger by CSP process.