316L不锈钢的热变形抗力模型
Hot Deformation Resistance Model of 316L Stainless Steel
摘 要
在Gleeble-1500型热模拟试验机上通过高温压缩试验对316L不锈钢的变形抗力进行了系统的研究;根据试验得到的真应力-应变曲线,分析了变形温度和应变速率对316L不锈钢变形抗力的影响,并建立了高温变形抗力模型.结果表明:316L不锈钢在高温压缩过程中的热加工硬化倾向性较大,真应力-应变曲线上并没有出现应力峰值σp;1 050 ℃是该钢的特征变形温度,低于1 050 ℃时,流变应力受温度影响较大,随着温度的升高,流变应力的下降幅度较大;高于1 050 ℃时,温度的影响较小,流变应力下降幅度较缓;变形抗力的数学模型为σ=6.879exp(3 337.602/T)ε0.2860.119,实际值和拟合值的对比证明此模型具有较好的线性拟合性和数据稳定性.
真应力-应变
变形抗力
模型
316L stainless steel
true stress-strain
deformation resistance
model
Abstract
The deformation resistance of 316L stainless steel had been systematically studied through high temperature compression tests on the Gleeble-1500 thermal simulation testing machine.According to the test,true stress-strain curves had been obtained,then the influences of deformation temperature and strain rate on deformation resistance had been investigated,and the hot deformation resistance model was established.The results show that 316L stainless steel was easy to work-hardening during hot deformation,and there was no peak stress σp on its true stress-strain curves.The temperature of 1 050 ℃ was the characteristic temperature of hot working of the steel.When the deformation temperature was below 1 050 ℃,the decreasing amplitude of flow stress with the increase of temperature was significant.On the other hand,when the deformation temperature was beyond 1 050 ℃,the influence of temperature and the decreasing amplitude was slight.A mathematical model of deformation resistance had been built,σ=6.879exp(3 337.602/T)ε0.2860.119,the model was proved to have excellent linear fitting and data stability after the measured and simulated values had been compared.
中图分类号 TG142
所属栏目 物理模拟与数值模拟
基金项目
收稿日期 2009/5/5
修改稿日期 2009/12/3
网络出版日期
作者单位点击查看
备注宋仁伯(1970-),男,辽宁鞍山人,副教授,博士.
引用该论文: SONG Ren-bo,XIANG Jian-ying,LIU Liang-yuan,REN Pei-dong,HOU Dong-po. Hot Deformation Resistance Model of 316L Stainless Steel[J]. Materials for mechancial engineering, 2010, 34(6): 85～88
宋仁伯,项建英,刘良元,任培东,侯东坡. 316L不锈钢的热变形抗力模型[J]. 机械工程材料, 2010, 34(6): 85～88
被引情况:
【1】代雪佳,凌泽民,刘明翔, "奥氏体不锈钢纵向焊接残余应力分布的有限元模拟",机械工程材料 38, 101-104(2014)
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参考文献
【1】DING B F,WU Y S,CAO B,et al.Martensite transformation induced by deformation and its phase electrochemical behavior for stainless steels AISI 304 and 316L[J].Journal of University of Science and Technology Beijing,2002,9(6):437-440.林慧国,林钢,吴静雯.袖珍世界钢号手册[M].北京:机械工业出版社,2007.
【2】康永林,傅杰,柳得橹,等.薄板坯连铸连铸钢的组织性能控制[M].北京:冶金工业出版社,2006.
【3】陈程,尹海清,曲选辉.钼塑性变形抗力数学模型的研究[J].塑性工程学报,2007,14(2):7-8.
【4】MCQUEEN H J,YUE S,RYAN N D,et al.Hot working characteristics of steels in austenistic state[J].Journal of Materials Processing Technology,1995,53:293-296.
【5】周晓锋,刘战英,侯大华.20MnSiV钢变形抗力数学模型和连续冷却转变曲线[J].河北冶金,2006(3):35-38.
【6】刘雅政.材料成形理论基础[M].北京:国防工业出版社,2004.
【7】潘金生,仝健民,田民波,等.材料科学基础[M].北京:清华大学出版社,1998.
【8】林新波,肖红生,冯建华,等.08F钢温锻温度范围内流动应力的实验研究与数学建模[J].塑性工程学报,2001,8(4):1-5.
【9】CINGARRA A,MCQUEEN H J.New formula calculating flow curves from high temperature constitutive data for 300 austenitic steels[J].Journal of Materials Processing Techno-logy,1992,36(1):31-42.
【10】周纪华,管克智.金属塑性变形阻力[M].北京:机械工业出版社,1989.
【11】康永林,王艳丽,张艳,等.高洁净微合金钢变形抗力的研究[J].中国机械工程,2002,12(3):68-70,5.
【12】LAN S H,LEE H J,LEE S H,et al.Experimental and numerical study on the viscoelastic property of polycarbonate near glass transition temperature for micro thermal imprint process[J].Materials and Design,2009,30(9):3879-3884.
【13】吴群英,林亮.应用数理统计[M].天津:天津大学出版社,1989.
【2】康永林,傅杰,柳得橹,等.薄板坯连铸连铸钢的组织性能控制[M].北京:冶金工业出版社,2006.
【3】陈程,尹海清,曲选辉.钼塑性变形抗力数学模型的研究[J].塑性工程学报,2007,14(2):7-8.
【4】MCQUEEN H J,YUE S,RYAN N D,et al.Hot working characteristics of steels in austenistic state[J].Journal of Materials Processing Technology,1995,53:293-296.
【5】周晓锋,刘战英,侯大华.20MnSiV钢变形抗力数学模型和连续冷却转变曲线[J].河北冶金,2006(3):35-38.
【6】刘雅政.材料成形理论基础[M].北京:国防工业出版社,2004.
【7】潘金生,仝健民,田民波,等.材料科学基础[M].北京:清华大学出版社,1998.
【8】林新波,肖红生,冯建华,等.08F钢温锻温度范围内流动应力的实验研究与数学建模[J].塑性工程学报,2001,8(4):1-5.
【9】CINGARRA A,MCQUEEN H J.New formula calculating flow curves from high temperature constitutive data for 300 austenitic steels[J].Journal of Materials Processing Techno-logy,1992,36(1):31-42.
【10】周纪华,管克智.金属塑性变形阻力[M].北京:机械工业出版社,1989.
【11】康永林,王艳丽,张艳,等.高洁净微合金钢变形抗力的研究[J].中国机械工程,2002,12(3):68-70,5.
【12】LAN S H,LEE H J,LEE S H,et al.Experimental and numerical study on the viscoelastic property of polycarbonate near glass transition temperature for micro thermal imprint process[J].Materials and Design,2009,30(9):3879-3884.
【13】吴群英,林亮.应用数理统计[M].天津:天津大学出版社,1989.
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