Fig. 3
From: Portevin–Le Chatelier effect: modeling the deformation bands and stress-strain curves
a The behavior of mean band velocities with external strain in experiments (red) and simulations (blue). The Inset shows the mean band velocity from experiments (red) and simulations (blue) as a function of the strain rate and behavior of the simulations (green) with a constant D=7·10−6 m 2/s. The straight line is a power-law fit \(\epsilon _{ext, t}^{0.8}\). b The scaled velocities from experiments (red) and simulations (blue). The black line is an exponential fit exp(−8.5·εext)