Study on Phase Transformation in Hot Stamping Process of USIBOR® 1500 High-Strength Steel

Metals

Le Zhu¹  Pengyun Zhang²  Chenyang Xi³  Junting Luo³ 

[1] Industrial Technology Centre, Chengde Petroleum College, Chengde 067000, China;School of Information Technology, Hebei University of Economics and Business, Shijiazhuang 050061, China;State key laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;

关键词: high-strength steel;    hot stamping;    martensitic transformation;    finite element analysis;   

DOI  :  10.3390/met9101119

来源: DOAJ

【 摘 要 】

Based on the Kirkaldy-Venugopalan model, a theoretical model for the phase transformation of USIBOR^® 1500 high strength steel was established, and a graph of the phase transformation kinetics of ferrite, pearlite, and bainite were plotted using the software MATLAB. Meanwhile, with the use of the software DYNAFORM, the thermal stamping process of an automobile collision avoidance beam was simulated. The phase transformation law of USIBOR^® 1500 high-strength steel during hot stamping was studied through a simulation of the phase transformation during the pressure holding quenching process. In combination with the continuous cooling transformation (CCT) curve, the cooling rate of quenching must be greater than 27 °C/s to ensure maximum martensite content in the final parts, and the final martensite content increases as the initial temperature of the sheet rises.

【 授权许可】

Unknown