Simulation of the hot flow behaviour of a medium carbon microalloyed steel. Part 1. Theoretical approach
Keywords:Modeling, Hot flow, Deformation, Constitutive equations
The constitutive equations to model the hot flow behaviour of metallic materials in general, and of microalloyed steels in particular (see part 2 of this work) are established in this work. Special emphasis is done on the dynamic softening mechanisms, i.e., dynamic recovery and recrystallization phenomena. The equations developed are physic-based, not empirical, and the modeling allows an easy implementation in an analysis by numerical methods. The resulting equations are even able to predict the final grain size.
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