摘要
采用Gleeble-3500热模拟试验机对实验高锰无磁钢进行等温、等速压缩实验,研究该钢种在变形温度为900~1100℃、应变速率为0.1~10.0s^-1条件下的热压缩变形行为.采用Zener-Hollomon参数法建立了高锰无磁钢高温变形的本构方程;以热压缩试验为基础,基于动态材料模型建立了实验钢种在不同应变下的热加工图,并进行分析,确定了该实验钢种的最佳热成形工艺参数.结果表明,实验钢种高温热变形最佳加工工艺变形温度为1050~1100℃,应变速率为0.1~0.3s^-1.
The hot compression behavior of high manganese non-magnetic steel was studied by the isothermal compression of cylindrical specimen in temperature range of 900~1 100 ℃ and strain rate range of 0.1~10.0 s^-1 through Gleeble-3500 simulated machine.The constitutive equation of high temperature thermal deformation of the tested steel at high temperature range was obtained by using Zener-Hollomon parameter method.According to the experimental results,the thermal processing maps based on the dynamic material model(DMM) under different strains were established and analyzed .The results show that,the optimum thermoforming process parameters for the experimental steel grade were determined.The optimum process parameters of the experimental steel at high temperature are deformation temperature 1 050~1 100 ℃ and strain rate of 0.1~0.3 s^-1 .
作者
赵峻
周玉
隋凤利
李长生
宗胜杰
ZHAO Jun;ZHOU Yu;SUI Fengli;LI Changsheng;ZONG Shengjie(School of Mechanical Engineering,Chaohu College,Chaohu 238000,China;School of Metallurgical Engineering,Anhui University of Technology,Ma anshan 243002,China;The State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China)
出处
《沈阳大学学报（自然科学版）》
CAS
2019年第4期268-273,共6页
Journal of Shenyang University：Natural Science
基金
国家自然科学基金资助项目(51274062)
关键词
高锰无磁钢
热变形
本构方程
热加工图
工艺参数
high manganese non-magnetic steel
hot deformation
constitutive equations
processing map
process parameters
