Based on the established dynamic recrystallization model of Ni80A alloy,a thermal compression fi-nite element model for Ni80A was developed in finite element simulation software. The study investigates the influence patterns of strain and strain rate on the dynamic recrystallization behavior of Ni80A during thermo-plastic deformation. The results indicate that the dynamic recrystallization volume fraction increases with the growth of strain,while it decreases with the increase in strain rate. Moreover,the average grain size decreas-es with the increase in strain and also decreases with the increase in strain rate.
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