基于CSP工艺稀土冷轧板罩式退火中组织织构演变  

Microstructure and Texture Evolution of Re Cold Reduced Steel Plate During the Cover Annealing Under CSP Technology

作　　者：崔瑞婷[1] 金自力[1] 闫波[2] 张利博[1] 郭冬青[1] 曹晓明[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [2]包头钢铁集团公司薄板厂,内蒙古包头014010

出　　处：《钢铁研究学报》2013年第3期34-38,共5页Journal of Iron and Steel Research

基　　金：国家自然基金项目(50761005);内蒙古自然基金重点项目(20080404Zd18)

摘　　要：采用金相显微镜和X射线衍射仪对CSP(Compact Strip Production)稀土板热轧、冷轧及退火3个阶段的组织和织构进行了检测和分析,并结合文献讨论了稀土板组织织构的演变规律。结果表明:稀土冷轧板以{223}<110>、{001}<110>、{112}<110>为主要织构,退火后形成了以{223}<110>和{111}<110>为主的再结晶织构,织构密度均达8.5以上,{223}<110>和{111}<110>取向差为10°。稀土板开始再结晶需要的温度较高,并且再结晶完成需要的时间较长。再结晶初期织构变化比后期小。试验稀土板退火后{111}/{001}值极大,{111}<011>织构与{111}<211>织构密度差约为6。The microstructure and texture of recrystallization process, hot roiled and cold rolled Re-steel plate were detected by the microscope and X-ray diffraction, then the microstructure and texture evolution of Re-steel plate was discussed based on literature. Results show that： after cold rolling process, the texture is mainly {223}〈110〉, {001}〈110〉 and {112}〈110〉. After annealing process, the texture is mainly {223}〈110〉 and {111}〈110〉, their texture density is above 8.5 and orientation sent is 10°. The recrystallization of Re-steel is restrained and the recovery rate at a certain temperature is reduced. The change of texture is smaller in recrystallization initial stage than in the later stage. After annealing, the product has great big {111}/{001} and the density difference of {111 } 〈011〉 and {111}〈211〉 is about 6.

关 键 词：稀土冷硬板 组织织构 再结晶 CSP工艺 

分 类 号：TG156.24[金属学及工艺—热处理]