建立4Cr5MoSiV1工具钢热变形过程的组织演化模型,以应用于DEFORM软件对其锻造过程进行全尺寸模拟.首先在大量热机械模拟实验数据的基础上,建立了基于Avrami方程的4Cr5MoSiV1工具钢奥氏体再结晶分数和再结晶晶粒尺寸计算模型,优化得到了模型的各项材料常数.对模型的预报结果与实验结果进行了对比验证,显示该模型的预测结果与实验结果具有良好的一致性,表明该模型及其优化后的参数可以应用于进一步热加工过程的全尺寸有限元模拟.
参考文献
| [1] | Sellars C M;Whiteman J A .Recrystallization and grain growth in hot rolling[J].Metal Science Journal,1979,13:187. |
| [2] | 康永林,董洪波.热轧过程组织性能数值模拟研究现状[J].轧钢,2004(01):42-44. |
| [3] | 沙孝春,兰勇军,李殿中,李依依.带钢热轧组织性能预测与控制技术应用与发展[J].轧钢,2003(03):23-26. |
| [4] | Wang MT;Li XT;Du FS;Zheng YZ .A coupled thermal-mechanical and microstructural simulation of the cross wedge rolling process and experimental verification[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):305-312. |
| [5] | A. J. Beaudoin;R. Srinivasan;S. L. Semiatin .Microstructure Modeling and Prediction During Thermomechanical Processing[J].JOM,2002(1):25-29. |
| [6] | Wang X T;Siwecki T;Engberg G .A physical model for prediction of microstructure evolution during thermo mechanical processing[J].Materials Science Forum,2003,426:3801. |
| [7] | Rios P R;Siciliano F Jr;Sandim H R Z et al.Nucleation and growth during recrystallization[J].Materials Research,2005,8(03):225. |
| [8] | H. S. Zurob;C. R. Hutchinson;Y. Brechet;G. Purdy .Modeling recrystallization of microalloyed austenite: effect of coupling recovery, precipitation and recrystallization[J].Acta materialia,2002(12):3075-3092. |
| [9] | DEFORM-3D Manual to version 5.0[M].SFTC,2003 |
| [10] | Wang X T;Eliasson J;Siwecki T .Microstructure modeling of hot working of chromium steels[R].Swedish Institute for Metals Research,Report No.IM-2004-125,2004. |
| [11] | Rynemark-Bergman M;Siwecki T;Petersson S .Modelling of microstructure during hot working of chromium steels[R].Swedish Institute for Metals Research,Report No.IM-1999-005,1999. |
| [12] | Nordin R .Development of Materialdatabas for DEFORM-3D[R].Technical Report PU-04-05,Uddeholm Tooling AB,2004. |
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