基于CSP工艺下稀土元素对低碳钢冷轧板再结晶的影响  

Effect of rare earth elements on recrystallization nucleation and growth of the low carbon steel cold-rolled plates based on the CSP process

作　　者：瞿伟[1] 金自力[1] 崔瑞婷[1] 鞠芳[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

出　　处：《材料热处理学报》2013年第S1期56-60,共5页Transactions of Materials and Heat Treatment

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：在实验室进行了冷轧板再结晶退火实验,结合再结晶实验结果及再结晶形核和长大动力学模型,研究了稀土元素对低碳钢冷轧薄板再结晶及晶粒长大的影响。结果表明,低碳钢冷轧薄板中加入稀土元素提高了再结晶温度,阻碍了再结晶形核及再结晶晶粒长大。低碳钢冷轧薄板中加入稀土元素增加了晶粒长大激活能。稀土元素提高了低碳钢冷轧薄板的再结晶形核激活能约3.87 kJ/mol,提高再结晶晶粒长大激活能约11.7%。Recrystallization annealing of cold-rolled plate experiments was completed in laboratory,combined the recrystallization experiment results and recrystallization nucleation and growth kinetics model to study the impact of the rare earth elements on recrystallization and grain growth of low-carbon steel cold-rolled sheet.The results show that adding rare earth elements in the low carbon steel and cold-rolled sheet increased the recrystallization temperature,hindered recrystallization nucleation and recrystallization grain growth which increases the grain growth activation energy.The rare earth elements increase the the low-carbon steel cold-rolled sheet recrystallization nucleation activation energy about 3.87 kJ/mol and the recrystallized grain growth activation energy increase by approximately 11.7%.

关 键 词：CSP 稀土元素 低碳钢冷轧板 再结晶形核 晶粒长大 

分 类 号：TG111.7[金属学及工艺—物理冶金]