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 microscope (OM) and electron back-scattered diffraction (EBSD). The results showed that high temperature coiling could promote 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 proportion 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 microstructure 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 ℃.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |