In order to obtain the mechanical properties required for 2014 aluminum alloy hot formed prod-ucts,it is often necessary to use dynamic recrystallization to achieve microstructure adjustment for obtain a microstructure with fine grains.This work establishes a multi field and multi-scale coupled finite element model for 2014 aluminum alloy hot compression,and analyzes the influence of temperature,strain,and strain rate on the dynamic recrystallization volume fraction and dynamic recrystallization grain size evolution of 2014 aluminum alloy.The results indicate that higher temperatures,larger strains,and strain rate of 0.1 s-1con-tribute to the activation of dynamic recrystallization mechanisms,resulting in finer grain structures.
关键词
2014铝合金/热成形/动态再结晶/有限元模拟
Key words
2014 aluminum alloy/Hot forming/Dynamic recrystallization/Finite element simulation
维普
万方数据