Modelling dynamic recovery and recrystallization of metals by a new non-equilibrium thermodynamics approach

A non-equilibrium thermodynamics-based approach is proposed to predict the dislocation density and flow stress at the steady state of high temperature deformation. For a material undergoing dynamic recovery and recrystallization, it is found that the total dislocation density can be expressed as ρ = (λε̇/b)2, where ε̇ is the strain rate, b is the magnitude of the Burgers vector and λ is a dynamic recovery and recrystallization related parameter