热轧过程中带材组织和性能预测模型的建立  

Establishment of Structure and Property Model of Strip in Hot Rolling

作　　者：杨德江 吴隆华 

出　　处：《钢铁研究学报》1997年第S1期15-19,共5页Journal of Iron and Steel Research

摘　　要：建立了热连轧中轧件再结晶和相变模型，编制了程序，并进行了计算。结果表明，在再结晶计算中，必须分别考虑未再结晶区域和再结晶区域对后道次轧制的不同影响。在ＴＴＴ图计算中，热力学计算采用中心原子模型，其计算结果较准确。动力学部分采用晶粒形核长大模式的计算是可取的。最后绘出了ＣＣＴ曲线和三维ＴＴＴ等温相变曲线。Recrystallization model and phase transformation model in hot rolling are established. A series of programs has been developed. The results show that, in recrystallization calculation, the difference between recrystal and unrecrystal zone must be considered. In TTT graph calculation, Central Atom Model (CAM) is applied which is precise in thermodynamic calculation. Grain nucleategrowth mode applied to dynamic calculation is reasonable. Finally, CCT curve and threedimension TTT curve are obtained.

关 键 词：再结晶区域 预测模型 组织和性能 热轧过程 铁素体 等温相变 奥氏体 中心原子模型 相变动力学 晶粒长大 

分 类 号：TG335.11[金属学及工艺—金属压力加工]