Cu对IF钢再结晶动力学的影响  

EFFECT OF COPPER ON THE RECRYSTALLIZATION KINETICS OF Cu-ADDED IF STEELS

作　　者：刘静[1,2] 文慕冰[1,2] 吴国运[1,2] 陈乾惕 王仁卉[1,2] 桂嘉年[1,2] 

机构地区：[1]武汉钢铁公司技术中心 [2]武汉大学物理系

出　　处：《金属学报》1999年第1期57-61,共5页Acta Metallurgica Sinica

摘　　要：用透射电镜（ＴＥＭ）、扫描探针（ＥＰＭＡ）及其ＥＢＳＤ附件等分析手段系统研究了不同Ｃｕ含量对ＩＦ钢再结晶动力学行为的影响．结果表明弥散析出的富Ｃｕ相阻碍含ＣｕＩＦ钢的再结晶过程．利用ＥＢＳＤ技术，首次观察到ＩＦ钢再结晶显微组织中有两类晶粒：其中一类具有对深冲性有利的γ纤维织构，另一类具有分散的显微织构，其主要组分为ＲＤ∥〈１１０〉，ＮＤ∥〈３３２〉．讨论了两类晶粒的形成机制．Effect of copper on the recrystallization kinetics of interstitial free steels (IF steels) has been studied by scanning and transmission electron microscopy and electron backscatter diffraction (EBSD). It was found that disperse Cu-rich precipitates suppress the recrystallization process of Cu containing IF steels. By using the newly developed EBSD technique it was observed that there are two types of crystalline grains in the recrystallized IF steels. Among them, one type of grains possesses γ -fibre microtexture which is of benefit to the deep drawability and the other exhibits dispersed microtextureand their larger part has 〈110〉∥RD and 〈332〉∥ ND. The formation mechanism of two types of grains was discussed.

关 键 词：IF钢 铜 再结晶 电子背散射衍射 显微织构 

分 类 号：TG111.7[金属学及工艺—物理冶金] U465.11[金属学及工艺—金属学]