Research on deformation and austenitic structure evolution for H-beam steel
The influences of rolling deformation and rolling rate in the single pass and multi passes of rough rolling and finish rolling during production of H-beam on austenitic structure evolution were researched by the method of FEM.And the relationship between austenitic recrystallization and grain diameter size was characterized.The simulation results showed that the larger strain in the early few passes of rolling was beneficial to austenite grain refinement,and the large deformation at high temperature was beneficial to refining austenite grain and homogenizing austenitic structure.The rolling process was improved after using the combination optimization simulation results,and was practiced in the field.It was showed that the size maximum of the optimized austenite grain was reduced by almost 30 ％,austenitic structure was more even,the average grain size reduced accordingly,and austenitic structure refined,all of which could improve the mechanical properties of h-beam.
NETL
NSTL
万方数据
维普
