非调质冷镦钢减定径轧制过程中组织演变的仿真分析

来源期刊：钢铁2010年第1期

论文作者：章静 董斌 孙维 曹杰 阎军

文章页码：60 - 63

关键词：非调质钢； 组织演变； 模拟

Key words：non-quenched and tempered steel； microstructure evolution； simulation

摘    要：为预测非调质冷镦钢的组织性能,在有限元软件MSC.Marc的基础上进行二次开发,建立了非调质冷镦钢减定径轧制的有限元模型。开发了非调质钢组织演变子程序,研究了非调质钢在减定径机组轧制过程中组织性能的变化规律。研究结果表明:在减定径阶段只发生了静态再结晶,再结晶晶粒大小从表面到中心逐渐增大。

Abstract: In order to predict the structure and property of non-quenched and tempered cold forging steel,the finite element software MSC.Marc was developed,Finite element models for reducing sizing mill reducing sizing mill(RSM) of non-quenched and tempered cold forging steel was set up.Subroutines of non-quenched and tempered steel microstructure evolution were exploited,and structure property variable law of non-quenched and tempered steel during RSM process was investigated.The results indicate that only static recrystallization happens during reducing and sizing rolling,and grain sizes gradually increase from the surface to the center.