Inverse processing optimization of hot rolled C-Mn steel plates based on modeling of process, microstructure, and properties
In the present paper, a mathematical model describing the microstructure evolution and relationship between microstructure and mechanical properties of C-Mn steel plates was developed by using experimental and production data, with a Based on the modeling, a concept of an inverse optimization of microstructure-properties evolution during hot plate rolling was proposed, with the requirement for mechanical properties of hot rolled plates being set up to be the optimization target and the capacity limit of rolling equipment as the optimization constraints. The optimization was realized through the combination of the real-coded genetic algorithm (RGA) and the BFGS method. By performing the optimization, the optimized processes and processing windows were obtained under specific constraints, in which diverse requirements for mechanical properties could be satisfied by adjusting processing parameters according to the optimization results. Good agreements have been achieved between the optimization results and production data, indicating that the optimized processes were in accordance with industrial hot plate rolling and could be used for further improvements of mechanical properties.
Mathematical Model Genetic Algorithm BFGS Optimization Steel Plates
T JIA Z Y LIU X H LIU G D WANG
The State Key Lab. Of Rolling and Automation, Northeastern University, Shenyang, 110004, P R China
国际会议
辽宁
英文
2006-10-21（万方平台首次上网日期，不代表论文的发表时间）