20MnMoNi55钢的后动态再结晶模型  

THE MODEL OF POST-DYNAMIC RECRYSTALLIZATION OF 20MnMoNi55 STEEL

作　　者：钟志平[1] 谢富冬 边翊[1] 张小光[1] 陈英[2] 曹起骧[3] 马喜腾[3] 

机构地区：[1]北京机电研究所北京,100083 [2]中国农业大学机械工程学院,北京100083 [3]清华大学,北京100084

出　　处：《塑性工程学报》2000年第2期23-26,共4页Journal of Plasticity Engineering

基　　金：国家自然科学基金!重点资助项目 (批准号 :5 92 35 10 1) ;华中理工大学塑性成形模拟及模具技术国家重点实验室开放研究基金

摘　　要：后动态再结晶是亚动态再结晶与动态再结晶晶粒长大两种机制的综合 ,本文采用热模拟与定量金相分析法研究了 2 0 Mn Mo Ni5 5钢的后动态再结晶 ,发现 :动态再结晶百分比对亚动态再结晶过程没有明显的影响。采用多元非线性回归法得到了后动态再结晶模型 。The post\|dynamic recreytallijation is the composite of meta\|dynamic recrystallization and grain growth of dynamic recrystallization.The post\|dynamic recrystallization of 20MnMoNi55 steel is investigated by means of hot simulation and quantitative analysis of metallography in this paper.It is discovered that there is no distinct influence of percentage of dynamic recrystallization on meta\|dynamic recrystallization.The model of post\|dynamic recrystallization is obtained by means of multivariate nonlinear regression analysis.The model was also verified in hot forging in laboratory.

关 键 词：后动态再结晶 亚动态再结晶 模型 锻造 锰镍镍钢 

分 类 号：TG316.8[金属学及工艺—金属压力加工] TG111.7