摘要
使用EBSD(电子背散射衍射)手段对IF钢在罩式退火过程中织构的变化进行了研究。研究结果表明:冷变形纤维是由尺寸小于2 μm 的亚晶组成,亚晶之间具有空间取向差,{001}变形晶粒中亚晶的取向差很小,而{111}变形纤维中亚晶的取向差通常较大,这导致{111}冷变形基体上首先发生形核和长大,而{001}取向纤维最后被吞并;随着再结晶的进行,晶粒之间的取向差呈小角度关系的比例下降,这是因为具有相近取向的亚晶数量随着再结晶的进行而减少的缘故。
Through batch annealing simulation in lab, the texture development of Ti IF steel in batch annealing (BA) was studied. The results show that cold deformed fibers in IF steel contain many subgrains which are less than 2 μm,and there always exists misorientation between subgrains. Large angle misorientations are much more in γ fibers than in other fibers, which makes nucleation easily take place in <111>//ND fibers, and <110>//RD fibers to be consumed at the end of recrystallization. Because of subgrain coalesce and grain consumption, the ratio of small angle misorientation decreases with the process of annealing process.
出处
《钢铁》
CAS
CSCD
北大核心
1999年第11期44-47,共4页
Iron and Steel