Prediction of Microstructure and Mechanical Properties in Hot Stamping

摘要：

　　Hot stamping process has been increasingly used in producing structural components of automobile to improve crash worthiness and fuel efficiency.Hot stamping process can produce ultimate tensile strength parts as high as 1500MPa.The high strength of hot-stamped components is attributed to the martensitic phase transformation which is transformed from austenite at elevated temperature.An improved model is developed based on Lis phase transformation model to predict the austenite decomposition into ferrite, pearlite, bainite and martensite during arbitrary cooling paths for thin sheet boron steel.The simulated volume fractions and hardness profiles shows acceptable agreement to the corresponding experimental observations.

关键词： hot stamping mechanical properties hardness microstructure

作者: Chao Wang Bin Zhu Yilin Wang Yisheng Zhang

作者单位: State Key Laboratory of Material Processing and Die and Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China

会议类型: 国际会议

会议名称: 2014 International Conference on Hot Stamping of UHSS(2014高强度钢热冲压成形国际会议)

会议地点: 重庆

会议语种:英文

页码: 239-242

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）