法兰轴热锻过程中的微观组织演变的数值模拟  

Numerical simulation of microstructure evolution of flange axle during hot forging

作　　者：江五贵[1] 耿世奇[1] 扶名福[2] 鲁世强[1] 汤井伦[1] 

机构地区：[1]南昌航空工业学院材料与工程学院,南昌330034 [2]南昌大学,南昌3300293

出　　处：《塑性工程学报》2006年第4期59-62,共4页Journal of Plasticity Engineering

基　　金：863计划资助项目(2002AA305107);江西省材料中心基金资助项目(Zx200301023)

摘　　要：阐述了金属材料塑性加工中微观组织演变数值模拟的重要性。重点介绍了金属热锻过程中材料微观组织演变的机理和数学模型。完成了金属材料热变形过程中再结晶动力学与晶粒长大模型研究,编制用户子程序并嵌入到DEFORM-TM程序中。通过法兰轴的热锻过程中微观组织演变的实例,有效地验证了程序的可行性,对金属热锻过程微观组织预测有一定的指导作用。The importance of numerical simulation of microstructure evolution during metal hot forging was introduced in this paper. The multi-mechanism and mathematic models of microstructure evolution during material hot forging were emphatically described. The study on recrystallization kinetics and grain growth models during material hot forging was accomplished and user subroutines were programmed to be embedded into DEFORM^-TM. Simulations of microstructure evolution for a flange axle hot forging were given, which effectively tested program feasibilities and played a certain role in guiding prediction on numerical simulation of microstructure evolution during metal hot forging.

关 键 词：热加工 微观组织 再结晶 晶粒度 数值模拟 

分 类 号：TG316.193[金属学及工艺—金属压力加工]