Effects of Coiling Temperature on Microstructure and Texture of 50W470 Non-oriented Silicon Steel
The effect laws of coiling temperature on microstructure and texture of 50W470 non-oriented silicon steel under hot rolling and normalizing processes are studied with such detection and analysis technologies as the optical micro-scope (OM)and electron back-scattered diffraction (EBSD). The results showed that high temperature coiling could pro-mote the transformation of deformed microstructure in central layer of hot rolled plate to equiaxed grain without distortion.The promoting effect of coiling at 740℃ is better than that of coiling at 600℃. After high temperature coiling,the propor-tion of favorable texture{100}+{110}is increased,while the proportion of unfavorable texture{111}is decreased. After normalizing,the microstructure of high temperature coiling plate is with perfect recrystallization and the deformed micro-structure is disappeared as well as the coiling plate with temperature of 740 ℃ is with more favorable texture{100}+{110}and fewer unfavorable texture{111}than those of coiling plate with temperature of 600 ℃.
万方数据
维普
