The dislocation density-based model after Kocks–Mecking–Estrin (KME) is widely used to characterize the thermally activated plastic deformation and dislocation kinetics. According to the model, the slope of the stress–strain curve decreases linearly with stress, which contradicts the experimental observation. In the current study, the evolution of dislocation density in the model is generalized to account for the nonlinearity of the slope. © 2018, The Minerals, Metals & Materials Society and ASM International.
|Journal||Data powered by TypesetMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science|
|Publisher||Data powered by TypesetSpringer Boston|