|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||High Performance Steels
||Non-metallic Precipitates Evolution Mechanism of Fe-3.0wt%Si Steel
||Huilan Sun, Zimo Bi, Di Zhang, Zhihong Guo, Bo Wang
|On-Site Speaker (Planned)
The non-metallic precipitation formation and transformation mechanism of non-oriented electrical steel have been studied when the heating treatment temperature ranges from 1000°C-1240°C. The types, morphologies, and sizes of precipitates were analyzed by the methods of FESEM and EDS. The results show that the main precipitate of non-oriented electrical steel is AlN, as well as some sulfides and composite precipitates. It shows a density gradient of precipitates along the thickness direction. The precipitates mainly distribute in the crystal grains, which have spherical, rod-like, and irregular shapes. When the heating temperature lower than 1120°C, the precipitates aggregate and coarsen. As the temperature increases to 1200°C, the number of precipitates gradually increases.
||Iron and Steel, Magnetic Materials, Characterization