Structure and Precipitation of strip as-cast and Hot-rolled by TSCR on Oriented Silicon Steel

摘要：

The simulation studies were carried out on the oriented silicon steel produced by thin slab casting and rolling (TSCR) and twin-roll strip casting in the laboratory. The precipitation of inhibiter, formation of microstructure and texture were investigated before cold rolling. The inhomogeneous microstructure and texture gradient were observed in the 7-pass hot-rolled strip (2mm) for TSCR process, and texture gradient was not changed after normalizing, and the twin-roll strip casting directly supplied a strip with approx 2mm of thickness being same as that of hot-rolled strip by TSCR. The microstructure of twin-rolling casting strip was almost composed of all equiaxed grains which similar to the normalizing microstructure in TSCR process, but the random texture was obtained by twin-rolling strip casting. The dispersed and clustered precipitates were presented in hot-rolled strip when the ingots were soaked at 1200℃ and 1150℃ respectively for the TSCR process. And disperse and acicular precipitates were observed by TEM for air-cooling cast strips for process twin-rolling casting.

关键词： silicon steel thin slab casting and rolling strip casting texture microstructure precipitation

作者: Yongmei Yu Yunbo Xu Yuanxiang Zhang Ting Zhang Xiaoming Zhang Guodong Wang

作者单位: Mechanical Engineering School, Shenyang University of Chemical Technology, Shenyang, China State Key Laboratory of Rolling Technology and Automation, Northeastern University,Shenyang, China State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 506-510

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）