Modeling of Hot Deformation Behavior of55SiMnMo Medium-Carbon Steel

被引：0

作者：

YAN Tao ^{[1
,2
]}

YU Enlin ^{[1
,2
]}

ZHAO Yuqian ^{[3
]}

机构：

[1] National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University

[2] College of Mechanical Engineering,Yanshan University

[3] Control Engineering College,Northeast University at Qinhuangdao

来源：

JournalofIronandSteelResearch(International) | 2013年 / 20卷 / 11期

关键词：

dynamic recrystallization; constitutive equation; work hardening; activation energy;

D O I：

10.13228/j.boyuan.issn1006-706x.2013.11.015

中图分类号：

TG142.31 [碳钢];

学科分类号：

080502 ;

摘要：

The hot deformation behavior of 55SiMnMo steel was studied by hot isothermal compression tests at 950-1 100℃and strain rates of 0.01-10s-1 using a Gleeble 3500thermal simulation machine.Experimental results show that the peak stress increases with decreasing deformation temperature and increasing strain rate.When the strain rateε=0.01s-1,or whenε=0.1s-1 and the deformation temperature T≥1 000℃,the dynamic recrystallization(DRX)of 55SiMnMo steel occurs.The hot flow stress constitutive equation,peak strain equation,as well as critical stress and strain for DRX initiation are obtained based on the experimental data.A comparison between the theoretical and experimental results verifies the reliability of the flow stress equation.

引用

页码：125 / 130

页数：6

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