Revisited Storage and Dynamic Recovery of Dislocation Density Evolution Law: Toward a Generalized Kocks–Mecking Model of Strain‐Hardening

Abstract

The current work extends the well established approach of Kocks and Mecking by a more realistic description of strain-hardening using an original dislocation density law with a revisited physical understanding of dynamic recovery, without new material parameters and keeping only one internal variable.

Assessment of a physical based modelling suitable to capture the mechanical behaviour at large plastic strain of aluminium alloys

“…At first, the new approach has been compared to K-M law concerning the evolution of flow stress in plane stress [12]. It is highlighted in [12] that the two approaches give similar results for low flow stress, but the new one avoids a rapid saturation of strain-hardening for higher stresses which is more consistent with all the available experimental data.…”

Sustainability applications of rare earths from metallurgy, magnetism, catalysis, luminescence to future electrochemical pseudocapacitance energy storage

“…Galvanic corrosion cannot be avoided in magnesium alloys with high negative potential. [44][45][46] Doping with rare earth elements presents a potential solution to the problems outlined. 47 The effect of doping with rare earth elements is claried below, using magnesium-based alloys as an illustration.…”

A Microstructure-Based Constitutive Model for Eutectoid Steels

“…These parameters are calibrated against experimental results. There are alternative models in the literature that provide a better description of strain hardening for a wider range of dislocation densities, such as that of Bouaziz et al [46,47]. However, in this model we have considered Voce's model for its simplicity.…”