Simulation of Strain-Stress Partitioning in Multi-phase Steel during Uniaxial Tension

摘要：

　　The effect of crystallographic orientation on the deformation and failure behaviors of DP980 steel was investigated using the crystal plasticity finite element method (CPFEM).A phase identification method that was based on the image quality of EBSD data and a filtering process provided the individual crystallographic orientations for ferrite and martensite phases in DP980 steel.By using a technique for the direct mapping of filtered microstructure into finite element meshes,CPFEM can capture the heterogeneity of strain-stress partitioning and the effect of microstructure heterogeneity on the hot spots for void formation in DP980 steel during uniaxial tension.The simulation results demonstrated that the initial crystallographic orientation of the constituent phases significantly affects the heterogeneity of strain-stress partitioning in DP980 steel during uniaxial tension.

关键词： Crystallographic orientation DP steel CPFEM

作者: E.-Y.Kim J.S.Kim J.H.Kwak S.H.Han S.-H.Choi

作者单位: Department of Materials Science and Metallurgical Engineering,Sunchon National University,Sunchon,Je POSCO Technical Research Laboratory,Gwangyang,Jeonnam,545-090,South Korea

会议类型: 国际会议

会议名称: Asia Steel International conference 2012(第五届亚洲钢铁大会)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2012-09-23（万方平台首次上网日期，不代表论文的发表时间）